AS47 — USC-AS - University of Southern California

AS47 announces 4 IPv4 prefixes covering 67,072 addresses and 0 IPv6 prefixes.

About this network

An early low-numbered allocation (USC-AS) serving the University of Southern California in Los Angeles.

What it's used for

• Campus, research, and administrative networking for USC and its institutes.

Notable

• Institutional address space, not commercial hosting.
• A two-digit AS number places USC among the internet's earliest participants.

Interesting

• USC's Information Sciences Institute (ISI) was central to early internet development, including the DNS and much of the TCP/IP standards work.

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

Announced prefixes

• 68.181.0.0/16
• 206.117.90.0/24
• 207.151.52.0/22
• 207.151.92.0/24

Upstream networks

• AS226 Los Nettos
• AS567 Los Nettos
• AS2153 CENIC

Adjacent networks

• AS226 Los Nettos
• AS567 Los Nettos
• AS2153 CENIC

Routing security

• RPKI: 0 valid, 0 invalid and 17 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 88% of announcements registered; 22 route objects.
• Listed in as-sets: AS-263541, AS-C-LIGHT-SCLR-TRANSIT, AS-C-LIGHT-TRANSIT, AS-CALREN2, AS-GC-CUSTOMERS, AS-LOSNETTOS, AS-LOSNETTOS-IPV6, AS-ROCKETNETWORK-CUSTOMERS, AS-SOX-TRANSIT, AS-SOX-TRANSIT-IPV6, AS293:AS-FROM-SINGAREN-TO-ESNET, AS7575:AS-RESEARCH.