IPv6 addresses are, first, allocated to IPv6 service providers who meet certain criteria set by the Regional Internet Registry (RIR), and after that, those service providers provide addresses to other service providers and user organizations. The network addresses being allocated are called “routing prefixes”.
A RIR is an organization that manages addresses and AS numbers by region for IPv4 as well. APNIC is in charge of the Asian Pacific region, RIPE NCC for the European, Middle Eastern, and some Asian regions, ARIN for the North American region, and LACNIC for the South American region. In April 2005, AfriNIC, the fifth RIR, was born to handle the African region.
At RIPE NCC, they provide a statistics website regarding assignment of IPv6 addresses. On this site, you can see the total number of allocated IPv6 addresses by each RIR and the total size of allocated IPv6 addresses.
;)
If you want to know the allocated IPv6 addresses by country, there is an easy to understand website by a European project called SixXS. On this site, not only do you see the IPv6 allocation by country the service provider belongs to, but you also see if each address block is actually visible on the network.
;)
この記事のトラックバックURL
http://www.ipv6style.jp/trackback/704
