AS12401 — INTERNIC-AS12401 internic Datenkommunikations GmbH

AS12401 announces 3 IPv4 prefixes covering 8,704 addresses and 1 IPv6 prefixes.

About this network

An Austrian provider announcing its own space alongside blocks belonging to other people.

What it's used for

• Business connectivity and hosting. 8,704 addresses in three IPv4 prefixes, one IPv6 /32, 35 observed BGP neighbours.

Notable

• Three prefixes, three unrelated registrants. The /19 is the provider's own, under the netname AT-PSC-990125. 87.76.163.0/24 is NihaoHostingeU, registered to Verisunucu.net with an IPBNB abuse contact. 192.133.109.0/24 is Internic-VOIP, registrant unknown.
• 35 neighbours against 8,704 addresses is a lot of interconnection for the size — this is a network that peers rather than one that just buys transit.
• The provider's own netname stem is PSC, which matches neither the company name nor the AS handle.

Interesting

• IPBNB is an address-leasing marketplace, and the /24 under it is a Turkish hosting brand's block being announced from an Austrian AS. Leased IPv4 moves like this constantly now: the registry says who owns the numbers, the routing table says who is currently using them, and the two answers have less and less to do with each other.
• The company shares its name with InterNIC, the body that ran domain registration for .com and the rest of the early internet. Unrelated, and considerably longer-lived.

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

Announced prefixes

• 87.76.163.0/24
• 192.133.109.0/24
• 212.126.64.0/19
• 2001:4100::/32

Upstream networks

• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS48362 Stadtwerke Feldkirch
• AS33891 Core-Backbone GmbH
• AS3303 Swisscom (Schweiz) AG
• AS9002 RETN Limited

Adjacent networks

• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS48362 Stadtwerke Feldkirch
• AS3303 Swisscom (Schweiz) AG
• AS33891 Core-Backbone GmbH
• AS9002 RETN Limited

Routing security

• RPKI: 1 valid, 0 invalid and 3 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-EBONE, AS-HURRICANEV6, AS-INIC, AS-RIS-RRC05, AS-VIX-MEMBERS, AS8412:AS-PEERS-VIX.

Internet exchanges

• Vienna Internet Exchange — Vienna, Austria