AS104 — COLORADO-AS

AS104 announces 16 IPv4 prefixes covering 91,136 addresses and 4 IPv6 prefixes.

About this network

An early allocation (COLORADO-AS) serving the University of Colorado Boulder.

What it's used for

• Campus, research, and administrative networking for the University of Colorado Boulder.

Notable

• An institutional / "eyeball" network for a research university, not commercial hosting. The low AS number marks an early-internet allocation, handed out roughly sequentially.

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

Announced prefixes

• 128.138.0.0/16
• 129.19.192.0/18
• 146.5.20.0/22
• 192.12.238.0/24
• 192.12.240.0/23
• 192.12.242.0/24
• 192.12.244.0/23
• 198.11.16.0/20
• 198.59.7.0/24
• 198.59.51.0/24
• 198.59.52.0/24
• 198.59.54.0/23
• 198.59.70.0/24
• 198.59.81.0/24
• 198.59.82.0/23
• 204.228.80.0/24
• 2001:468:501::/48
• 2401:eee0:1c0::/42
• 2401:eee0:200::/42
• 2620:18f::/32

Upstream networks

• AS14041 University Corporation for Atmospheric Research
• AS3356 Level 3 Parent, LLC
• AS65501
• AS149433 FM Networks

Adjacent networks

• AS14041 University Corporation for Atmospheric Research
• AS3356 Level 3 Parent, LLC
• AS149433 FM Networks
• AS65501