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AS4, University of Southern California

ASN:
Last update 13 hours ago
at 2026-11-08 16:57 UTC
Corrections?
AS4 (ISI-AS)
Country:
US - United States (North America)
Type:
Educational institution
 
Org.:
University of Southern California logo University of Southern California
https://www.isi.edu 
Social media: @twitter/X  @twitter/X  @twitter/X  @twitter/X  @twitter/X  @twitter/X  @twitter/X  @twitter/X  @facebook  @instagram 
 
Stats:
Peers
14
IX'es
-
Prefixes
54
Sub
prefixes
16
IPv4
66K
IPv6
2.4^29
Eyeballs
~4K
 
Associations:
AS4 / University of Southern California has operational ties with 1 other ASN's (see associated ASN's).
 
Contact:
University of Southern California
Information Sciences Institute
4676 Admiralty Way, Suite 1001
90292
Marina del Rey
US

+1-310-448-8289

IPC Computing Services
action@isi.edu
+1-310-448-8289

 
 

History

Date
Peers
Prefixes
2026-10-18
-1
-
2026-10-19
-2
-
2026-10-24
+1
-
2026-10-24
-
+1
2026-11-09
-2
-
Current
12
54
- - show more (+52 entries) - -
 

Peers

ASN
Organization
Peers
AS266306
CENTRALNETT SERVIOS LTDA
4
AS266625
WCA TELECOM
38
AS275860
TEKNET SERVICOS DE TELECOMUNICACOES LTDA
3
AS30844
Liquid Telecommunications Ltd
1,961
AS58821
PT Lintas Jaringan Nusantara
16
AS139451
PT SARANA INTI MAKMUR BERSAMA
2
AS37358
BitCo
37
AS328434
Netovate (PTY) LTD
22
AS174
Cogent Communications, LLC
6,562
AS226
Los Nettos
15
AS567
Los Nettos
10
AS10886
University of Maryland
32
AS400215
Sambanova Systems, Inc.
3
AS2635
Automattic, Inc
321
 

 Announced prefixes

ASN
Announced prefix
Description
AS4
128.9.0.0/20
University of Southern California
AS4
128.9.16.0/24
University of Southern California
AS4
128.9.17.0/24
University of Southern California
AS4
128.9.18.0/24
University of Southern California
AS4
128.9.19.0/24
University of Southern California
AS4
128.9.26.0/24
University of Southern California
AS4
128.9.28.0/23
University of Southern California
AS4
128.9.30.0/24
University of Southern California
AS4
128.9.31.0/24
University of Southern California
AS4
128.9.32.0/20
University of Southern California
AS4
• 128.9.34.0/24
University of Southern California
- - show more (+43 entries) - -
 

Log

000+000
  • Parse input (ASN)
000+000
  • Search database for 'AS4'
002+002
  • 1 ASN's found
002+000
  • Done
002+000
  • Load details of AS4
004+002
  • Last update of ASN: 2026-11-08 16:57 UTC
031+027
  • 54 prefixes found
054+023
  • 14 peers found
056+002
  • No matching IX connections found!
060+004
  • 11 links loaded, 11 verified
307+247
  • 57 historical items loaded
316+008
  • 2 associated ASN's found
316+000
  • Done
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