AS15295 — UNC-1388600-ASN - University of Northern Colorado

AS15295 announces 2 IPv4 prefixes covering 65,792 addresses and 0 IPv6 prefixes.

About this network

A university /16, and one address still answering with a dialup pool name.

What it's used for

• A university network. Two IPv4 prefixes announced from the United States, no IPv6, and two observed BGP neighbours.

Notable

• The larger block is a /16, sixty-five thousand addresses issued when universities were given space on that scale.
• The smaller block is registered to a carrier under the netname CENTURYLINK-LEGACY-QWEST-INET-32, which names the current carrier, the word legacy, the acquired carrier, a service type and a counter in one label.
• Its one answering address is p64.Greeley.dialup.csn.net: a port number, a city with a capital letter, the word dialup, and a fourth domain belonging to none of the parties on record.
• The university's registrant field appends a domain name administrator role after a semicolon.
• Six addresses were queried for reverse DNS and one returned a name.

Interesting

• That reverse name is a fossil. It describes a modem port on a service that has not been sold for a generation, and it still resolves because nobody has had a reason to remove the zone.
• A netname that carries the word legacy is a carrier admitting its own history in a field meant for identification. It survives every rebrand because changing it means touching every record.
• Sixty-five thousand addresses for one institution is an allocation from an era of abundance. No university applying today would be given anything close.

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

Announced prefixes

• 138.86.0.0/16
• 199.117.107.0/24

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS14041 University Corporation for Atmospheric Research

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS14041 University Corporation for Atmospheric Research

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 50% of announcements registered; 1 route objects.
• Listed in as-sets: AS-267613, AS-CTBC-CUSTOMERS81, AS-FRGP.