AS12790 — CEA-AS

AS12790 announces 1 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

Every sampled address answers, and one of them says it is leased.

What it's used for

• A small Russian provider network. 512 addresses in one IPv4 prefix, one observed BGP neighbour, and no IPv6 announced.

Notable

• The entire inventory is 212.92.96.0/23, netname RU-MCNTELECOM-19991103.
• The AS handle is CEA-AS, held by MSN Telecom LLC.
• All three sampled addresses returned a name: adr128.cea.ru, leased-255.cea.ru and emu-126.cea.ru.

Interesting

• leased-255 marks the address as let to somebody else. Address space is a rentable asset, and an operator with more of it than customers can sublet blocks the same way it sublets rack space. Writing that into the reverse name is unusually candid: most operators leave leased addresses looking exactly like their own.
• Three sampled addresses, three different prefixes on the names — adr, leased, emu — in a single /23. These names were assigned individually, by hand, over time, which is what happens on a network small enough that somebody knows what each address does.
• The netname dates the block to 3 November 1999, in the same season as several other holders in this range. The company name in the netname, MCNTELECOM, does not match the current holder's MSN Telecom: one of them changed, and the registry kept the older spelling.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 212.92.96.0/23

Upstream networks

• AS34352 MSN Telecom LLC

Adjacent networks

• AS34352 MSN Telecom LLC

Routing security

• RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 1 route objects.
• Listed in as-sets: AS-CEA, AS-DIMEDIA, AS-ELVISFROMRA, AS-HURRICANE, AS-MCN.