Documents
IPv6 Top Level Aggregation Identifier Assignments
(source IANA)
IPV6 TOP LEVEL AGGREGATION IDENTIFIER ASSIGNMENTS
DEPRECATED BY [RFC4147]
THIS PAGE IS BEING PRESERVED FOR HISTORICAL RECORDS. FOR THE CURRENT REGISTRY
PLEASE SEE: <http://www.iana.org/assignments/ipv6-unicast-address-assignments>
(last updated 2009-08-19)
TLA Identifier Assignments
--------------------------
TLA Identifiers are defined in [RFC2374] and are assigned from the Format
Prefix (FP) 001 (binary) in [RFC2373].
TLA ID assignments are listed below.
IPv6 Prefix FP TLA Binary Value TLA Hex Assignment Reference
----------- --- ---------------- ------- --------------------------- ---------
2000::/16 001 0 0000 0000 0000 0x0000 Reserved
2001::/16 001 0 0000 0000 0001 0x0001 Sub-TLA Assignments [RFC2450]
2002::/16 001 0 0000 0000 0010 0x0002 "6to4" [RFC3056]
2003::/16 001 0 0000 0000 0011 0x0003 Global Unicast [RFC4291]
3FFE::/16 001 1 1111 1111 1110 0x1FFE 6bone Testing [RFC2471]
To be phased out 6-Jun-2006 [RFC3701]
3FFF::/16 001 1 1111 1111 1111 0x1FFF Reserved
Note: Hex values are right justified.
All TLA ID values not listed above are reserved.
Sub-TLA Identifier Assignments
------------------------------
Sub-TLA Identifiers are defined in [RFC2450] and are assigned out of
TLA ID 0x0001. Note that use of the Reserved field to create the Sub-TLA
field is specific to TLA ID 0x0001. It does not affect any other TLA ID.
| 3 | 13 | 13 | 19 |
+----+----------------+----------------+-----------------------+ . . .
| FP | TLA | Sub-TLA | NLA |
| | ID | | ID |
+----+----------------+----------------+-----------------------+ . . .
|001 |0 0000 0000 0001|xxxx xxxx xxxx x|xxx xxxx xxxx xxxx xxxx|
As specified in [RFC2450], Sub-TLA ID assignments are done in blocks.
The initial Sub-TLA ID assignments to IP address registries are in blocks
of 64 Sub-TLA IDs. These assignments are listed below.
IPv6 Prefix sub-TLA Binary Values Allocated to Date
--------------- --------------------- ------------------- ------
2001:0000::/23 0000 000X XXXX X IANA Jul 99
2001:0200::/23 0000 001X XXXX X APNIC Jul 99
2001:0400::/23 0000 010X XXXX X ARIN Jul 99
2001:0600::/23 0000 011X XXXX X RIPE NCC Jul 99
2001:0800::/23 0000 100X XXXX X RIPE NCC May 02
2001:0A00::/23 0000 101X XXXX X RIPE NCC Nov 02
2001:0C00::/23 0000 110X XXXX X APNIC ** May 02
2001:0E00::/23 0000 111X XXXX X APNIC Jan 03
2001:1000::/23 0001 000X XXXX X (future assignment)
2001:1200::/23 0001 001X XXXX X LACNIC Nov 02
2001:1400::/23 0001 010X XXXX X RIPE NCC Feb 03
2001:1600::/23 0001 011X XXXX X RIPE NCC Jul 03
2001:1800::/23 0001 100X XXXX X ARIN Apr 03
2001:1A00::/23 0001 101X XXXX X RIPE NCC Jan 04
2001:1C00::/23 0001 110X XXXX X RIPE NCC May 04
2001:1E00::/23 0001 111X XXXX X RIPE NCC May 04
2001:2000::/23 0010 000X XXXX X RIPE NCC May 04
2001:2200::/23 0010 001X XXXX X RIPE NCC May 04
2001:2400::/23 0010 010X XXXX X RIPE NCC May 04
2001:2600::/23 0010 011X XXXX X RIPE NCC May 04
2001:2800::/23 0010 100X XXXX X RIPE NCC May 04
2001:2A00::/23 0010 101X XXXX X RIPE NCC May 04
2001:2C00::/23 0010 110X XXXX X RIPE NCC May 04
2001:2E00::/23 0010 111X XXXX X RIPE NCC May 04
2001:3000::/23 0011 000X XXXX X RIPE NCC May 04
2001:3200::/23 0011 001X XXXX X RIPE NCC May 04
2001:3400::/23 0011 010X XXXX X RIPE NCC May 04
2001:3600::/23 0011 011X XXXX X RIPE NCC May 04
2001:3800::/23 0011 100X XXXX X RIPE NCC May 04
2001:3A00::/23 0011 101X XXXX X RIPE NCC May 04
2001:3C00::/23 0011 110X XXXX X (reserved *) Jun 04
2001:3E00::/23 0011 111X XXXX X (reserved *) Jun 04
2001:4000::/23 0100 000X XXXX X RIPE NCC Jun 04
2001:4200::/23 0100 001X XXXX X ARIN Jun 04
2001:4400::/23 0100 010X XXXX X APNIC Jun 04
2001:4600::/23 0100 011X XXXX X RIPE NCC Aug 04
2001:4800::/23 0100 100X XXXX X ARIN Aug 04
2001:4A00::/23 0100 101X XXXX X RIPE NCC Oct 04
2001:4C00::/23 0100 110X XXXX X RIPE NCC Dec 04
. . .
2001:5000::/23 0101 000X XXXX X RIPE NCC Sep 04
2001:5200::/23 0101 001X XXXX X RIPE NCC Sep 04
2001:5400::/23 0101 010X XXXX X RIPE NCC Sep 04
2001:5600::/23 0101 011X XXXX X RIPE NCC Sep 04
2001:5800::/23 0101 100X XXXX X RIPE NCC Sep 04
2001:5A00::/23 0101 101X XXXX X RIPE NCC Sep 04
2001:5C00::/23 0101 110X XXXX X RIPE NCC Sep 04
2001:5E00::/23 0101 111X XXXX X RIPE NCC Sep 04
. . .
2001:8000::/23 1000 000X XXXX X APNIC Nov 04
2001:8200::/23 1000 001X XXXX X APNIC Nov 04
2001:8400::/23 1000 010X XXXX X APNIC Nov 04
2001:8600::/23 1000 011X XXXX X APNIC Nov 04
2001:8800::/23 1000 100X XXXX X APNIC Nov 04
2001:8A00::/23 1000 101X XXXX X APNIC Nov 04
2001:8C00::/23 1000 110X XXXX X APNIC Nov 04
2001:8E00::/23 1000 111X XXXX X APNIC Nov 04
2001:9000::/23 1001 000X XXXX X APNIC Nov 04
2001:9200::/23 1001 001X XXXX X APNIC Nov 04
2001:9400::/23 1001 010X XXXX X APNIC Nov 04
2001:9600::/23 1001 011X XXXX X APNIC Nov 04
2001:9800::/23 1001 100X XXXX X APNIC Nov 04
2001:9A00::/23 1001 101X XXXX X APNIC Nov 04
2001:9C00::/23 1001 110X XXXX X APNIC Nov 04
2001:9E00::/23 1001 111X XXXX X APNIC Nov 04
2001:A000::/23 1010 000X XXXX X APNIC Nov 04
2001:A200::/23 1010 001X XXXX X APNIC Nov 04
2001:A400::/23 1010 010X XXXX X APNIC Nov 04
2001:A600::/23 1010 011X XXXX X APNIC Nov 04
2001:A800::/23 1010 100X XXXX X APNIC Nov 04
2001:AA00::/23 1010 101X XXXX X APNIC Nov 04
2001:AC00::/23 1010 110X XXXX X APNIC Nov 04
2001:AE00::/23 1010 111X XXXX X APNIC Nov 04
. . .
. . .
. . .
2001:FE00::/23 1111 111X XXXX X (future assignment)
Where "X" indicates "0" or "1".
All other Sub-TLA ID values not listed above are reserved.
When an RIR is nearing complete allocation of all of the Sub-TLA IDs in its
block(s), it can request that the IANA provide another block.
The block of Sub-TLA IDs assigned to the IANA (i.e., 2001:0000::/23
is for assignment for testing and experimental usage to support activities
such as the 6bone, and for new approaches like exchanges.
* For possible future allocation to RIPE NCC.
** Per [RFC3849], the 2001:DB8::/32 prefix has been assigned as
a NON-ROUTABLE range to be used for documentation purposes.
Please see the following for additional information:
http://www.apnic.net/info/faq/ipv6-documentation-prefix-faq.html
Global Unicast Prefix Assignment Date Note
--------------------- ---------- --------- ----
2003:0000::/18 RIPE NCC 12 Jan 05
References
----------
[RFC2471] Hinden, R., R. Fink, J. Postel, "IPv6 Testing Address
Allocation", RFC2471, December 1998.
[RFC2373] Hinden, R., "IP Version 6 Addressing Architecture",
RFC2373, July 1998.
[RFC2374] Hinden, R., Deering, S., O'Dell, M., "An Aggregatable
Global Unicast Address Format", RFC2374, July 1998.
[RFC2450] Hinden, R., "Proposed TLA and NLA Assignment Rules",
RFC2450, December 1998.
[RFC3056] Carpenter, B., K. Moore, "Connection of IPv6 Domains via IPv4
Clouds without Explicit Tunnels", RFC 3056, February 2001.
[RFC3701] Fink, R., "6Bone (IPv6 Testing Address Allocation) Phaseout",
RFC 3701, March 2004.
[RFC3849] G. Huston, A. Lord, and P. Smith, "IPv6 Address Prefix
Reserved for Documentation", RFC 3849, July 2004.
[RFC4147] G. Huston, "Proposed changes to the format of the IANA IPv6 Registry",
RFC 4147, August 2005.
[RFC4291] R. Hinden and S. Deering, "IP Version 6 Addressing Architecture",
RFC 4291, February 2006.
[]
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