AS12145

Name: AS12145 — Colorado State University
Creator: ipdex

Colorado State University Unknown registered in United States

3IPv4 prefixes

0IPv6 prefixes

100%RPKI-valid

#3,739AS Rank

327/327RIS visibility

#7,302Rank in United States

1999-04-06Allocated

Colorado State University (AS12145) — Unknown, registered in United States. announces 3 IPv4 prefixes + 0 IPv6 prefixes. Rank in United States: #7302. Allocated: 1999-04-06.

IPv4 3IPv6 0

Announced prefixes · 3

v4 129.19.0.0/18 valid
v4 129.19.3.0/24 valid
v4 129.82.0.0/16 valid

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 3 IPv4 · 0 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	3
2026-06-13	3

AS topology · Customer cone 6

Providers · 1

AS14041 University Corporation for Atmospheric Research

Customers · 5

AS25825 Poudre Valley Health Care, Inc.
AS31991 Platte River Power Authority
AS54060 Poudre School District R-1
AS54669 Larimer County Government
AS394748 City of Fort Collins

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