AS12915 — EPAG-AS

AS12915 announces 4 IPv4 prefixes covering 7,680 addresses and 1 IPv6 prefixes.

About this network

Four blocks of descending size, all registered on the same day in 1999.

What it's used for

• The network of a German domain registrar. 7,680 addresses across four IPv4 prefixes, one IPv6 prefix, and three observed BGP neighbours.

Notable

• The blocks are 212.123.48.0/20, 212.123.32.0/21, 212.123.40.0/22 and 212.123.44.0/23, each half the size of the last.
• All four carry the identical netname DE-ENTER-PRICE-19990705.
• The IPv6 prefix is 2604:4000:8000::/48, from a range issued in a different region than the IPv4 space.
• Twelve addresses were sampled and none returned a name.

Interesting

• Four blocks halving in size with one shared netname and one shared date is a single allocation that was later cut up for routing purposes. The registry still sees one assignment; the routing table sees four announcements. The descending sizes come from carving a block into progressively smaller pieces as each piece was needed.
• ENTER-PRICE is a pun on enterprise, and it names a company that is not the current holder. The block has changed hands and kept somebody's joke, which will outlast the company that made it.
• The IPv6 prefix comes from a range administered for a different part of the world than the IPv4 blocks. Address space is regional by registry, not by geography, so a European company that obtained IPv6 through an entity elsewhere ends up announcing space that geolocation databases will place on the wrong continent unless someone corrects them.
• Twelve addresses sampled, no names at all, from a company in the business of running domain names.

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

Announced prefixes

• 212.123.32.0/21
• 212.123.40.0/22
• 212.123.44.0/23
• 212.123.48.0/20
• 2604:4000:8000::/48

Upstream networks

• AS25394 MK Netzdienste Verwaltungs GmbH trading as MK Netzdienste GmbH & Co. KG
• AS13237 euNetworks GmbH
• AS2914 NTT America, Inc.

Adjacent networks

• AS25394 MK Netzdienste Verwaltungs GmbH trading as MK Netzdienste GmbH & Co. KG
• AS13237 euNetworks GmbH
• AS2914 NTT America, Inc.

Routing security

• RPKI: 2 valid, 0 invalid and 0 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 11 route objects.
• Listed in as-sets: AS-EPAG, AS-HURRICANEV6, AS-MK-NETZDIENSTE, AS-MK-NETZDIENSTE-V6, AS2914:AS-EUROPE, AS2914:AS-EUROPE-V6, AS394497:AS-CUSTOMERS, AS394644:AS-CUSTOMERS.