AS27595 — COLUM-600 - Columbia College Chicago

AS27595 announces 1 IPv4 prefixes covering 2,048 addresses and 0 IPv6 prefixes.

About this network

COLUM-600 is operated by Columbia College Chicago.

What it's used for

• The space carries the institutional network for the college, identified by the netname COLUM-70 and registrant Columbia College Chicago.
• The AS announces 2048 IPv4 addresses across 1 prefix (199.168.232.0/21) with 2 observed neighbours, indicating a small, self-contained campus network rather than a transit or large-scale access provider.

Notable

• The RDAP registrant Columbia College Chicago matches the registry holder and AS handle, confirming consistent ownership.
• The address inventory consists of a single contiguous /21 block, typical for a dedicated institutional allocation.

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

Announced prefixes

• 199.168.232.0/21

Upstream networks

• AS25645 Momentum Telecom, Inc.
• AS6079 RCN

Adjacent networks

• AS25645 Momentum Telecom, Inc.
• AS6079 RCN

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 30 route objects.
• Listed in as-sets: AS-ATRIVO, AS-BTN-CUSTOMERS, AS-ICN-CUSTOMERS, AS-MTMACCESS, AS-RCN-CUSTOMER, AS-WIREWORKS, AS22335:AS-CUSTOMERS, AS6325:AS-ICN-HIGHERED.