asn.dev

Autonomous system

AS17207 COLOR-COLL - Colorado College

Unclassified ARIN

IPv4 addresses 3.58K 7 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Colorado College

United States of America · AI-generated

education business us

The AS handle COLOR-COLL is held by Colorado College.

What it's used for

  • The address space carries internal corporate and educational infrastructure, evidenced by netnames such as NETBLK-COLO-COLL, WEST-CC2, and COLO-COLLEGE.
  • The AS announces 3584 IPv4 addresses across 7 prefixes and maintains a single observed neighbour, a ratio that indicates an isolated, self-contained network rather than a transit or large-scale access provider.

Notable

  • All registrants in the RDAP data align with the announcer, consistently listing Colorado College for every prefix.
  • The address inventory is finely subdivided into seven distinct blocks, including multiple /24s and /22s, which reflects site-by-site segmentation typical of a large institutional estate.
  • No IPv6 prefixes are currently announced in the inventory.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS14041University Corporation for Atmospheric Research682

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 7 prefixes · 3.58K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America7

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS17207
Registry name
COLOR-COLL
Registrant
Colorado College
Abuse contact
z@coloradocollege.edu
Registered
2000-08-04
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
73% valid · 8 valid, 3 with no ROA
ROAs
4 authorising AS17207
ASPA
no ASPA record
IRR
100% registered · 11 of 11 announcements
Route objects
12 naming AS17207

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 453 networks and 1,846 prefixes, as published 2026-11-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check