IPV6 TOP LEVEL AGGREGATION IDENTIFIER ASSIGNMENTS DEPRECATED BY [RFC4147] THIS PAGE IS BEING PRESERVED FOR HISTORICAL RECORDS. FOR THE CURRENT REGISTRY PLEASE SEE: (last updated 24 February 2005) 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 ----------- --- ---------------- ------- ------------------ 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 [RFC3513] 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. [RFC3513] R. Hinden and S. Deering, "Internet Protocol Version 6 (IPv6) Addressing Architecture", RFC 3513, April 2003. [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. []