AS103 — NWU-AS
AS103 announces 22 IPv4 prefixes covering 149,504 addresses and 3 IPv6 prefixes.
About this network
An early allocation (NWU-AS) serving Northwestern University in Evanston, Illinois.
What it's used for
- Campus, research, and administrative networking for Northwestern University.
Notable
- An institutional / "eyeball" network for a research university, not commercial hosting. The low AS number reflects how early Northwestern connected, in the internet's first years.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 8.28.178.0/23
- 8.30.248.0/22
- 38.124.97.0/24
- 129.105.0.0/16
- 165.124.0.0/17
- 165.124.128.0/19
- 165.124.160.0/20
- 165.124.176.0/21
- 165.124.184.0/23
- 165.124.186.0/24
- 165.124.192.0/19
- 165.124.224.0/21
- 165.124.232.0/22
- 165.124.240.0/20
- 192.5.143.0/24
- 192.26.85.0/24
- 192.26.86.0/23
- 192.31.253.0/24
- 199.74.64.0/18
- 199.249.165.0/24
- 199.249.166.0/23
- 199.249.168.0/23
- 2401:eee0:140::/42
- 2401:eee0:180::/42
- 2620:10d:2000::/41
Upstream networks
- AS2381 WiscNet
- AS396450 Internet2
- AS3356 Level 3 Parent, LLC
- AS22335 Metropolitan Research and Education Network
- AS174 Cogent Communications, LLC
- AS33491 Comcast Cable Communications, LLC
- AS293 ESnet
- AS11537 Internet2
- AS11164 Internet2
- AS65502
- AS149433 FM Networks
Adjacent networks
BGP / ASN / CIDR
awaiting query
enter an AS number, IP address, or organisation name above
IPv4
resolving...
IPv6
resolving...
Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED