IPv6 Global Unicast Address Assignments [0] [last updated 2008-05-13] Global Unicast Prefix Assignment Date Note --------------------- ---------- ------ ---- 2001:0000::/23 IANA 01 Jul 99 [1] 2001:0200::/23 APNIC 01 Jul 99 2001:0400::/23 ARIN 01 Jul 99 2001:0600::/23 RIPE NCC 01 Jul 99 2001:0800::/23 RIPE NCC 01 May 02 2001:0A00::/23 RIPE NCC 02 Nov 02 2001:0C00::/23 APNIC 01 May 02 [2] 2001:0E00::/23 APNIC 01 Jan 03 2001:1200::/23 LACNIC 01 Nov 02 2001:1400::/23 RIPE NCC 01 Feb 03 2001:1600::/23 RIPE NCC 01 Jul 03 2001:1800::/23 ARIN 01 Apr 03 2001:1A00::/23 RIPE NCC 01 Jan 04 2001:1C00::/22 RIPE NCC 01 May 04 2001:2000::/20 RIPE NCC 01 May 04 2001:3000::/21 RIPE NCC 01 May 04 2001:3800::/22 RIPE NCC 01 May 04 2001:3C00::/22 RESERVED 11 Jun 04 [3] 2001:4000::/23 RIPE NCC 11 Jun 04 2001:4200::/23 AfriNIC 01 Jun 04 2001:4400::/23 APNIC 11 Jun 04 2001:4600::/23 RIPE NCC 17 Aug 04 2001:4800::/23 ARIN 24 Aug 04 2001:4A00::/23 RIPE NCC 15 Oct 04 2001:4C00::/23 RIPE NCC 17 Dec 04 2001:5000::/20 RIPE NCC 10 Sep 04 2001:8000::/19 APNIC 30 Nov 04 2001:A000::/20 APNIC 30 Nov 04 2001:B000::/20 APNIC 08 Mar 06 2002:0000::/16 6to4 01 Feb 01 [4] 2003:0000::/18 RIPE NCC 12 Jan 05 2400:0000::/12 APNIC 03 Oct 06 [7] 2600:0000::/12 ARIN 03 Oct 06 [8] 2610:0000::/23 ARIN 17 Nov 05 2620:0000::/23 ARIN 12 Sep 06 2800:0000::/12 LACNIC 03 Oct 06 [6] 2A00:0000::/12 RIPE NCC 03 Oct 06 [5] 2C00:0000::/12 AfriNIC 03 Oct 06 Notes: [0] The assignable Global Unicast Address space is defined in [RFC4291] as being the address block defined by the prefix 2000::/3. All address space in this block not listed in the table above is reserved by IANA for future allocation. [1] IANA Special Purpose Address Block [RFC4773]. See: http://www.iana.org/assignments/iana-ipv6-special-registry [2] 2001:0DB8::/32 has been assigned as a NON-ROUTABLE range to be used for documentation purpose [RFC3849]. [3] 2001:3C00::/22 is reserved for possible future allocation to the RIPE NCC. [4] 2002::/16 is reserved for use in 6to4 deployments [RFC3056]. [5] 2A00:0000::/21 was originally allocated on 19 Apr 05. 2A01:0000::/23 was allocated on 14 Jul 05. 2A01:0000::/16 (incorporating the 2A01:0000::/23) was allocated 15 Dec 2005. The more recent allocation (03 Oct 2006) incorporates these previous allocations. [6] 2800:0000::/23 was allocated on 17 Nov 05. The more recent allocation (03 Oct 06) incorporates the previous allocation. [7] 2400:0000::/19 was allocated on 20 May 05. 2400:2000::/19 was allocated on 08 Jul 05. 2400:4000::/21 was allocated on 08 Aug 05. 2404:0000::/23 was allocated on 19 Jan 06. The more recent allocation (03 October 06) incorporates all these previous allocations. [8] 2600:0000::/22, 2604:0000::/22, 2608:0000::/22 and 260C:0000::/22 were allocated on 19 Apr 05. The more recent allocation (03 Oct 06) incorporates all these previous allocations. References ---------- [RFC2471] Hinden, R., R. Fink, J. Postel, "IPv6 Testing Address Allocation", RFC 2471, December 1998. [RFC2928] Hinden, R., Deering, S., Fink, R., Hain, T., , "Initial IPv6 Sub-TLA ID Assignments", RFC 2928, September 2000. [RFC3056] Carpenter, B., K. Moore, "Connection of IPv6 Domains via IPv4 Clouds without Explicit Tunnels", RFC 3056, February 2001. [RFC4291] Hinden, R., "IP Version 6 Addressing Architecture", RFC 4291, February 2006. [RFC3849] Huston, G., A. Lord, P. Smith, "IPv6 Address Prefix Reserved for Documentation", RFC 3849, July 2004. [RFC4147] Huston, G., "Proposed changes to the format of the IANA IPv6 Registry", RFC 4147, August 2005. [RFC4380] C. Huitema, "Teredo: Tunneling IPv6 over UDP through NATs", RFC 4380, February 2006. [RFC4773] G. Huston, "Administration of the IANA Special Purpose Address Block", RFC 4773, December 2006. []