// ASN
AS4
ISI-AS - University of Southern California, US
Detailed information about the Autonomous System. Need another one? Look up a different ASN.
- ASN
- AS4
- Organization
- University of Southern California
- Description
- ISI-AS - University of Southern California, US
- Country
- US
- State / Region
- CA
- City
- Marina del Rey
- Address
- Information Sciences Institute
- Registry (RIR)
- ARIN
- Created
- 2023-09-10
- Updated
- 2023-09-21
- IPv4 Prefixes
- 41
- IPv6 Prefixes
- 5
IPv4 Prefixes
41 total · showing first 10128.9.0.0/20 128.9.112.0/20 128.9.113.0/24 128.9.117.0/24 128.9.122.0/24 128.9.123.0/24 128.9.127.0/24 128.9.128.0/20 128.9.144.0/20 128.9.16.0/24
IPv6 Prefixes
5 total2001:1878:401::/48 2001:1878:402::/48 2001:1878:403::/48 2001:1878:404::/48 2001:500:202::/48
What is AS4?
AS4 is an Autonomous System Number (ASN) assigned to University of Southern California. An ASN identifies a network or group of IP prefixes operated under a common routing policy in the BGP protocol.
Looking for more ASN data?
Use our ASN Lookup Tool for real-time WHOIS queries, or explore our API documentation to integrate ASN data into your applications.