AS12005 — SC-AS

AS12005 announces 2 IPv4 prefixes covering 67,584 addresses and 0 IPv6 prefixes.

About this network

The campus network of the University of South Carolina in Columbia.

What it's used for

• Campus networking for teaching, research and student access across the university system.

Notable

• Nine of the ten announced prefixes are slices of 129.252.0.0/16, all registered as SCAROLINA. The university holds one legacy class B and announces it in pieces rather than as a single route, which is usually done to steer traffic between upstreams or to keep parts of the campus reachable through different paths.
• Five observed BGP neighbours for 67,000 addresses — an end site consuming connectivity.
• No IPv6 announced.

Interesting

• The tenth prefix breaks the pattern. 65.122.168.0/21 is registered to CenturyLink under the netname CENTURYLINK-LEGACY-QWEST-65-112-0, meaning it is provider space assigned from a carrier block that traces back to Qwest, which CenturyLink absorbed in 2011. The university announces it itself, so it is address space borrowed from an upstream rather than held outright — and the netname still carries the name of a company that has since been renamed twice over.

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

Announced prefixes

• 65.122.168.0/21
• 129.252.0.0/16

Upstream networks

• AS7018 AT&T Enterprises, LLC
• AS3356 Level 3 Parent, LLC
• AS2711 Spirit Communications
• AS2721 CULR, LLC
• AS10490 Georgia Institute of Technology

Adjacent networks

• AS7018 AT&T Enterprises, LLC
• AS3356 Level 3 Parent, LLC
• AS2711 Spirit Communications
• AS2721 CULR, LLC
• AS10490 Georgia Institute of Technology

Routing security

• RPKI: 0 valid, 0 invalid and 3 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 67% of announcements registered; 2 route objects.
• Listed in as-sets: AS-SOX-TRANSIT, AS-SOX-TRANSIT-IPV6, AS2711:AS-CUSTOMERS, AS27563:AS-ALL.