AS12695 DINET-AS

201 neighbours, 111 IPv4 prefixes, and an IPv6 ladder that doubles at every step until it stops.

What it's used for

• Access, hosting and transit in Russia. 134,400 addresses in 111 IPv4 prefixes, 33 IPv6 prefixes, and 201 observed BGP neighbours.

Notable

• Netnames record eight separate allocations to one holder: RU-DINET-990903, 20030121, 20060418, 20071018, 20080208 and 20081230.
• The IPv6 announcements out of 2a00:1c48 run /45, two /46s, then /44, /43, /42, /41 and /40, each twice the size of the last.
• The ladder breaks at the end: 2a00:1c48:200::/45 is far smaller than the /40 before it.
• One IPv6 prefix comes from elsewhere entirely: 2001:67c:b18::/48.
• First observed in the routing archive in May 2001.

Interesting

• That doubling sequence is the same shape seen elsewhere in this range, and it is what CIDR produces when a range that is not itself a power of two gets carved up greedily from the bottom. The final /45 sitting after a /40 is the tell that the ranges were assigned at different times and merely happen to sit next to each other.
• 2001:67c::/32 is a different aggregate from the 2a00::/12 space that holds everything else here. Prefixes from that range are handed out for specific purposes rather than as an operator's general pool, so a single /48 from it usually marks a service rather than a customer network.
• 201 neighbours is a transit business, not an access one, and allocations spread over nine years are what continuous growth looks like in the registry rather than one leap.