AS62671 — UNIVERSITY-OF-COLORADO-SYSTEM - ECS-Infrastructure

AS62671 announces 1 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

UNIVERSITY-OF-COLORADO-SYSTEM is operated by ECS-Infrastructure, the IT division of the University of Colorado system.

What it's used for

• The address space carries internal university infrastructure, evidenced by reverse DNS entries such as sharepointdev.cu.edu, radius1-nat.cu.edu, and jobsatcu.com.
• The AS announces 1024 IPv4 addresses across 2 prefixes with 1 observed neighbour, indicating a small, self-contained internal network rather than a transit or large-scale access provider.
• Traffic from this AS consists of internal university services, research endpoints, and administrative systems for the four-campus University of Colorado system.

Notable

• Registrants for both announced prefixes (204.228.68.0/23 and 204.228.70.0/23) are listed as ECS-Infrastructure with netname UCUISNET-U4, aligning with the AS holder.
• The address inventory is compact, consisting of two contiguous /23 blocks, typical of a single institutional network estate.

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

Announced prefixes

• 204.228.68.0/22

Upstream networks

• AS14041 University Corporation for Atmospheric Research

Adjacent networks

• AS14041 University Corporation for Atmospheric Research

Routing security

• RPKI: 3 valid, 0 invalid and 0 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-FRGP, AS20021:AS-CUSTOMERS.