AS1224 — NCSA-AS - University of Illinois

AS1224 announces 2 IPv4 prefixes covering 65,792 addresses and 1 IPv6 prefixes.

About this network

The network of the National Center for Supercomputing Applications (NCSA-AS) at the University of Illinois Urbana-Champaign.

What it's used for

• High-performance computing and research networking for NCSA and its national supercomputing users.

Notable

• A low, early-internet AS number reflecting NCSA's role as one of the original US national supercomputer centers.

Interesting

• NCSA is where NCSA Mosaic, the web browser that popularized the World Wide Web, was created in the early 1990s.

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

Announced prefixes

• 141.142.0.0/16
• 198.17.196.0/24
• 2620:0:c80::/48

Upstream networks

• AS40387 University of Illinois
• AS22335 Metropolitan Research and Education Network
• AS293 ESnet

Adjacent networks

• AS40387 University of Illinois
• AS22335 Metropolitan Research and Education Network
• AS293 ESnet

Routing security

• RPKI: 1 valid, 0 invalid and 2 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 5 route objects.
• Listed in as-sets: AS-CARNE, AS-HURRICANE, AS-HURRICANEV6, AS-ICCN, AS-PAVLOV:AS-CUSTOMERS, AS-TRANSROUTE-SPEC, AS-UIUC, AS-WISCNET-WRIPS, AS198949:AS-SD, AS22335:AS-CUSTOMERS, AS23473:AS-CUSTOMERS, AS3676:AS-UIOWA-PEERS-ANNOUNCE-CUST.