Documents
Internet Protocol v4 Address Space

(source IANA)
IANA IPv4 Address Space Registry

   Last Updated
           2017-04-19

   Registration Procedure(s)

 Allocations to RIRs are made in line with the Global Policy published at [http://www.icann.org/en/resources/policy/global-addressing].
 All other assignments require IETF Review.

   Description

 The allocation of Internet Protocol version 4 (IPv4) address space to various registries is listed
 here. Originally, all the IPv4 address spaces was managed directly by the IANA. Later parts of the
 address space were allocated to various other registries to manage for particular purposes or
 regional areas of the world. RFC 1466 [RFC1466] documents most of these allocations.

   Reference
           [RFC7249]

   Available Formats
           [IMG]
           CSV [IMG]
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           HTML [IMG]
           Plain text

   Prefix                         Designation                           Date         WHOIS                    RDAP              Status [1]   Note
   000/8  IANA - Local Identification                                  1981-09                                                   RESERVED    [2]
   001/8  APNIC                                                        2010-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   002/8  RIPE NCC                                                     2009-09  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   003/8  General Electric Company                                     1994-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   004/8  Level 3 Communications, Inc.                                 1992-12  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   005/8  RIPE NCC                                                     2010-11  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   006/8  Army Information Systems Center                              1994-02  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   007/8  Administered by ARIN                                         1995-04  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   008/8  Level 3 Communications, Inc.                                 1992-12  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   009/8  IBM                                                          1992-08  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   010/8  IANA - Private Use                                           1995-06                                                   RESERVED    [3]
   011/8  DoD Intel Information Systems                                1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   012/8  AT&T Bell Laboratories                                       1995-06  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   013/8  Administered by ARIN                                         1991-09  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   014/8  APNIC                                                        2010-04  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED    [4]
   015/8  Hewlett-Packard Company                                      1994-07  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   016/8  Digital Equipment Corporation                                1994-11  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   017/8  Apple Computer Inc.                                          1992-07  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   018/8  Administered by ARIN                                         1994-01  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   019/8  Ford Motor Company                                           1995-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   020/8  Administered by ARIN                                         1994-10  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   021/8  DDN-RVN                                                      1991-07  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   022/8  Defense Information Systems Agency                           1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   023/8  ARIN                                                         2010-11  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   024/8  ARIN                                                         2001-05  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   025/8  UK Ministry of Defence                                       1995-01  whois.ripe.net     https://rdap.db.ripe.net/      LEGACY
   026/8  Defense Information Systems Agency                           1995-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   027/8  APNIC                                                        2010-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   028/8  DSI-North                                                    1992-07  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   029/8  Defense Information Systems Agency                           1991-07  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   030/8  Defense Information Systems Agency                           1991-07  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   031/8  RIPE NCC                                                     2010-05  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   032/8  Administered by ARIN                                         1994-06  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   033/8  DLA Systems Automation Center                                1991-01  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   034/8  Administered by ARIN                                         1993-03  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   035/8  Administered by ARIN                                         1994-04  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   036/8  APNIC                                                        2010-10  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   037/8  RIPE NCC                                                     2010-11  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   038/8  PSINet, Inc.                                                 1994-09  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   039/8  APNIC                                                        2011-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   040/8  Administered by ARIN                                         1994-06  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   041/8  AFRINIC                                                      2005-04 whois.afrinic.net https://rdap.afrinic.net/rdap/ ALLOCATED
                                                                                                 http://rdap.afrinic.net/rdap/
   042/8  APNIC                                                        2010-10  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   043/8  Administered by APNIC                                        1991-01  whois.apnic.net     https://rdap.apnic.net/       LEGACY
   044/8  Amateur Radio Digital Communications                         1992-07  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   045/8  Administered by ARIN                                         1995-01  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   046/8  RIPE NCC                                                     2009-09  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   047/8  Administered by ARIN                                         1991-01  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   048/8  Prudential Securities Inc.                                   1995-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   049/8  APNIC                                                        2010-08  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   050/8  ARIN                                                         2010-02  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   051/8  Administered by RIPE NCC                                     1994-08  whois.ripe.net     https://rdap.db.ripe.net/      LEGACY
   052/8  Administered by ARIN                                         1991-12  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   053/8  Daimler AG                                                   1993-10  whois.ripe.net     https://rdap.db.ripe.net/      LEGACY
   054/8  Administered by ARIN                                         1992-03  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   055/8  DoD Network Information Center                               1995-04  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   056/8  US Postal Service                                            1994-06  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   057/8  Societe Internationale de Telecommunications Aeronautiques   1995-05  whois.ripe.net     https://rdap.db.ripe.net/      LEGACY
          S.C.R.L.
   058/8  APNIC                                                        2004-04  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   059/8  APNIC                                                        2004-04  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   060/8  APNIC                                                        2003-04  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   061/8  APNIC                                                        1997-04  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   062/8  RIPE NCC                                                     1997-04  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   063/8  ARIN                                                         1997-04  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   064/8  ARIN                                                         1999-07  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   065/8  ARIN                                                         2000-07  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   066/8  ARIN                                                         2000-07  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   067/8  ARIN                                                         2001-05  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   068/8  ARIN                                                         2001-06  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   069/8  ARIN                                                         2002-08  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   070/8  ARIN                                                         2004-01  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   071/8  ARIN                                                         2004-08  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   072/8  ARIN                                                         2004-08  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   073/8  ARIN                                                         2005-03  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   074/8  ARIN                                                         2005-06  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   075/8  ARIN                                                         2005-06  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   076/8  ARIN                                                         2005-06  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   077/8  RIPE NCC                                                     2006-08  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   078/8  RIPE NCC                                                     2006-08  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   079/8  RIPE NCC                                                     2006-08  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   080/8  RIPE NCC                                                     2001-04  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   081/8  RIPE NCC                                                     2001-04  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   082/8  RIPE NCC                                                     2002-11  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   083/8  RIPE NCC                                                     2003-11  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   084/8  RIPE NCC                                                     2003-11  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   085/8  RIPE NCC                                                     2004-04  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   086/8  RIPE NCC                                                     2004-04  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   087/8  RIPE NCC                                                     2004-04  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   088/8  RIPE NCC                                                     2004-04  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   089/8  RIPE NCC                                                     2005-06  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   090/8  RIPE NCC                                                     2005-06  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   091/8  RIPE NCC                                                     2005-06  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   092/8  RIPE NCC                                                     2007-03  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   093/8  RIPE NCC                                                     2007-03  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   094/8  RIPE NCC                                                     2007-07  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   095/8  RIPE NCC                                                     2007-07  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   096/8  ARIN                                                         2006-10  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   097/8  ARIN                                                         2006-10  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   098/8  ARIN                                                         2006-10  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   099/8  ARIN                                                         2006-10  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   100/8  ARIN                                                         2010-11  whois.arin.net   https://rdap.arin.net/registry ALLOCATED    [5]
                                                                                                 http://rdap.arin.net/registry
   101/8  APNIC                                                        2010-08  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   102/8  AFRINIC                                                      2011-02 whois.afrinic.net https://rdap.afrinic.net/rdap/ ALLOCATED
                                                                                                 http://rdap.afrinic.net/rdap/
   103/8  APNIC                                                        2011-02  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   104/8  ARIN                                                         2011-02  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   105/8  AFRINIC                                                      2010-11 whois.afrinic.net https://rdap.afrinic.net/rdap/ ALLOCATED
                                                                                                 http://rdap.afrinic.net/rdap/
   106/8  APNIC                                                        2011-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   107/8  ARIN                                                         2010-02  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   108/8  ARIN                                                         2008-12  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   109/8  RIPE NCC                                                     2009-01  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   110/8  APNIC                                                        2008-11  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   111/8  APNIC                                                        2008-11  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   112/8  APNIC                                                        2008-05  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   113/8  APNIC                                                        2008-05  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   114/8  APNIC                                                        2007-10  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   115/8  APNIC                                                        2007-10  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   116/8  APNIC                                                        2007-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   117/8  APNIC                                                        2007-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   118/8  APNIC                                                        2007-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   119/8  APNIC                                                        2007-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   120/8  APNIC                                                        2007-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   121/8  APNIC                                                        2006-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   122/8  APNIC                                                        2006-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   123/8  APNIC                                                        2006-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   124/8  APNIC                                                        2005-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   125/8  APNIC                                                        2005-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   126/8  APNIC                                                        2005-01  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   127/8  IANA - Loopback                                              1981-09                                                   RESERVED    [6]
   128/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   129/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   130/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   131/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   132/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   133/8  Administered by APNIC                                        1997-03  whois.apnic.net     https://rdap.apnic.net/       LEGACY
   134/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   135/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   136/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   137/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   138/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   139/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   140/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   141/8  Administered by RIPE NCC                                     1993-05  whois.ripe.net     https://rdap.db.ripe.net/      LEGACY
   142/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   143/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   144/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   145/8  Administered by RIPE NCC                                     1993-05  whois.ripe.net     https://rdap.db.ripe.net/      LEGACY
   146/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   147/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   148/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   149/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   150/8  Administered by APNIC                                        1993-05  whois.apnic.net     https://rdap.apnic.net/       LEGACY
   151/8  Administered by RIPE NCC                                     1993-05  whois.ripe.net     https://rdap.db.ripe.net/      LEGACY
   152/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   153/8  Administered by APNIC                                        1993-05  whois.apnic.net     https://rdap.apnic.net/       LEGACY
   154/8  Administered by AFRINIC                                      1993-05 whois.afrinic.net https://rdap.afrinic.net/rdap/   LEGACY
                                                                                                 http://rdap.afrinic.net/rdap/
   155/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   156/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   157/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   158/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   159/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   160/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   161/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   162/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   163/8  Administered by APNIC                                        1993-05  whois.apnic.net     https://rdap.apnic.net/       LEGACY
   164/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   165/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   166/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   167/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   168/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   169/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY     [7]
                                                                                                 http://rdap.arin.net/registry
   170/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   171/8  Administered by APNIC                                        1993-05  whois.apnic.net     https://rdap.apnic.net/       LEGACY
   172/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY     [8]
                                                                                                 http://rdap.arin.net/registry
   173/8  ARIN                                                         2008-02  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   174/8  ARIN                                                         2008-02  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   175/8  APNIC                                                        2009-08  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   176/8  RIPE NCC                                                     2010-05  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   177/8  LACNIC                                                       2010-06 whois.lacnic.net  https://rdap.lacnic.net/rdap/  ALLOCATED
   178/8  RIPE NCC                                                     2009-01  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   179/8  LACNIC                                                       2011-02 whois.lacnic.net  https://rdap.lacnic.net/rdap/  ALLOCATED
   180/8  APNIC                                                        2009-04  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   181/8  LACNIC                                                       2010-06 whois.lacnic.net  https://rdap.lacnic.net/rdap/  ALLOCATED
   182/8  APNIC                                                        2009-08  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   183/8  APNIC                                                        2009-04  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   184/8  ARIN                                                         2008-12  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   185/8  RIPE NCC                                                     2011-02  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   186/8  LACNIC                                                       2007-09 whois.lacnic.net  https://rdap.lacnic.net/rdap/  ALLOCATED
   187/8  LACNIC                                                       2007-09 whois.lacnic.net  https://rdap.lacnic.net/rdap/  ALLOCATED
   188/8  Administered by RIPE NCC                                     1993-05  whois.ripe.net     https://rdap.db.ripe.net/      LEGACY
   189/8  LACNIC                                                       1995-06 whois.lacnic.net  https://rdap.lacnic.net/rdap/  ALLOCATED
   190/8  LACNIC                                                       1995-06 whois.lacnic.net  https://rdap.lacnic.net/rdap/  ALLOCATED
   191/8  Administered by LACNIC                                       1993-05 whois.lacnic.net  https://rdap.lacnic.net/rdap/    LEGACY
   192/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY   [9][10]
                                                                                                 http://rdap.arin.net/registry
   193/8  RIPE NCC                                                     1993-05  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   194/8  RIPE NCC                                                     1993-05  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   195/8  RIPE NCC                                                     1993-05  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   196/8  Administered by AFRINIC                                      1993-05 whois.afrinic.net https://rdap.afrinic.net/rdap/   LEGACY
                                                                                                 http://rdap.afrinic.net/rdap/
   197/8  AFRINIC                                                      2008-10 whois.afrinic.net https://rdap.afrinic.net/rdap/ ALLOCATED
                                                                                                 http://rdap.afrinic.net/rdap/
   198/8  Administered by ARIN                                         1993-05  whois.arin.net   https://rdap.arin.net/registry   LEGACY     [11]
                                                                                                 http://rdap.arin.net/registry
   199/8  ARIN                                                         1993-05  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   200/8  LACNIC                                                       2002-11 whois.lacnic.net  https://rdap.lacnic.net/rdap/  ALLOCATED
   201/8  LACNIC                                                       2003-04 whois.lacnic.net  https://rdap.lacnic.net/rdap/  ALLOCATED
   202/8  APNIC                                                        1993-05  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   203/8  APNIC                                                        1993-05  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED    [12]
   204/8  ARIN                                                         1994-03  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   205/8  ARIN                                                         1994-03  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   206/8  ARIN                                                         1995-04  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   207/8  ARIN                                                         1995-11  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   208/8  ARIN                                                         1996-04  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   209/8  ARIN                                                         1996-06  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   210/8  APNIC                                                        1996-06  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   211/8  APNIC                                                        1996-06  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   212/8  RIPE NCC                                                     1997-10  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   213/8  RIPE NCC                                                     1993-10  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   214/8  US-DOD                                                       1998-03  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   215/8  US-DOD                                                       1998-03  whois.arin.net   https://rdap.arin.net/registry   LEGACY
                                                                                                 http://rdap.arin.net/registry
   216/8  ARIN                                                         1998-04  whois.arin.net   https://rdap.arin.net/registry ALLOCATED
                                                                                                 http://rdap.arin.net/registry
   217/8  RIPE NCC                                                     2000-06  whois.ripe.net     https://rdap.db.ripe.net/    ALLOCATED
   218/8  APNIC                                                        2000-12  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   219/8  APNIC                                                        2001-09  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   220/8  APNIC                                                        2001-12  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   221/8  APNIC                                                        2002-07  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   222/8  APNIC                                                        2003-02  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   223/8  APNIC                                                        2010-04  whois.apnic.net     https://rdap.apnic.net/     ALLOCATED
   224/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   225/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   226/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   227/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   228/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   229/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   230/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   231/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   232/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   233/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   234/8  Multicast                                                    1981-09                                                   RESERVED  [13][14]
   235/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   236/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   237/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   238/8  Multicast                                                    1981-09                                                   RESERVED    [13]
   239/8  Multicast                                                    1981-09                                                   RESERVED  [13][15]
   240/8  Future use                                                   1981-09                                                   RESERVED    [16]
   241/8  Future use                                                   1981-09                                                   RESERVED    [16]
   242/8  Future use                                                   1981-09                                                   RESERVED    [16]
   243/8  Future use                                                   1981-09                                                   RESERVED    [16]
   244/8  Future use                                                   1981-09                                                   RESERVED    [16]
   245/8  Future use                                                   1981-09                                                   RESERVED    [16]
   246/8  Future use                                                   1981-09                                                   RESERVED    [16]
   247/8  Future use                                                   1981-09                                                   RESERVED    [16]
   248/8  Future use                                                   1981-09                                                   RESERVED    [16]
   249/8  Future use                                                   1981-09                                                   RESERVED    [16]
   250/8  Future use                                                   1981-09                                                   RESERVED    [16]
   251/8  Future use                                                   1981-09                                                   RESERVED    [16]
   252/8  Future use                                                   1981-09                                                   RESERVED    [16]
   253/8  Future use                                                   1981-09                                                   RESERVED    [16]
   254/8  Future use                                                   1981-09                                                   RESERVED    [16]
   255/8  Future use                                                   1981-09                                                   RESERVED  [16][17]

                                                                      Footnotes

   [1]  Indicates the status of address blocks as follows:
        RESERVED: designated by the IETF for specific non-global-unicast purposes as noted.
        LEGACY: allocated by the central Internet Registry (IR) prior to the Regional Internet Registries
        (RIRs). This address space is now administered by individual RIRs as noted, including maintenance
        of WHOIS Directory and reverse DNS records. Assignments from these blocks are distributed globally
        on a regional basis.
        ALLOCATED: delegated entirely to specific RIR as indicated.
        UNALLOCATED: not yet allocated or reserved.
   [2]  0.0.0.0/8 reserved for self-identification [RFC1122], section 3.2.1.3.
        Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry].
   [3]  Reserved for Private-Use Networks [RFC1918].
        Complete registration details for 10.0.0.0/8 are found in [IANA registry iana-ipv4-special-registry].
   [4]  This was reserved for Public Data Networks [RFC1356]. See [IANA registry public-data-network-numbers].
        It was recovered in February 2008 and was subsequently allocated to APNIC in April 2010.
   [5]  100.64.0.0/10 reserved for Shared Address Space [RFC6598].
        Complete registration details for 100.64.0.0/10 are found in [IANA registry iana-ipv4-special-registry].
   [6]  127.0.0.0/8 reserved for Loopback [RFC1122], section 3.2.1.3.
        Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry].
   [7]  169.254.0.0/16 reserved for Link Local [RFC3927].
        Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry].
   [8]  172.16.0.0/12 reserved for Private-Use Networks [RFC1918].
        Complete registration details are found in [IANA registry iana-ipv4-special-registry].
   [9]  192.0.2.0/24  reserved for TEST-NET-1 [RFC5737].
        Complete registration details for 192.0.2.0/24 are found in [IANA registry iana-ipv4-special-registry].
        192.88.99.0/24 reserved for 6to4 Relay Anycast [RFC3068]
        Complete registration details for 192.88.99.0/24 are found in [IANA registry iana-ipv4-special-registry].
        192.88.99.2/32 reserved for 6a44 Relay Anycast [RFC6751] (possibly collocated with 6to4 Relay
        at 192.88.99.1/32 - see [RFC3068] section 2.4)
        192.168.0.0/16 reserved for Private-Use Networks [RFC1918].
        Complete registration details for 192.168.0.0/16 are found in [IANA registry iana-ipv4-special-registry].
   [10] 192.0.0.0/24 reserved for IANA IPv4 Special Purpose Address Registry [RFC5736].
        Complete registration details for 192.0.0.0/24 are found in [IANA registry iana-ipv4-special-registry].
   [11] 198.18.0.0/15 reserved for Network Interconnect Device Benchmark Testing [RFC2544].
        Complete registration details for 198.18.0.0/15 are found in [IANA registry iana-ipv4-special-registry].
        198.51.100.0/24 reserved for TEST-NET-2 [RFC5737].
        Complete registration details for 198.51.100.0/24 are found in [IANA registry iana-ipv4-special-registry].
   [12] 203.0.113.0/24 reserved for TEST-NET-3 [RFC5737].
        Complete registration details for 203.0.113.0/24 are found in [IANA registry iana-ipv4-special-registry].
   [13] Multicast (formerly "Class D") [RFC5771] registered in [IANA registry multicast-addresses]
   [14] Unicast-Prefix-Based IPv4 Multicast Addresses [RFC6034]
   [15] Administratively Scoped IP Multicast [RFC2365]
   [16] Reserved for future use (formerly "Class E") [RFC1112].
        Reserved by protocol. For authoritative registration, see [IANA registry iana-ipv4-special-registry].
   [17] 255.255.255.255 is reserved for "limited broadcast" destination address [RFC919] and [RFC922].
        Complete registration details for 255.255.255.255/32 are found in [IANA registry iana-ipv4-special-registry].