asn.dev

Autonomous system

AS6056 COLBY

Education APNIC

IPv4 addresses 65.54K 1 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

Colby College

United States · AI-generated

education university legacy

AS6056 (COLBY) is the campus network of Colby College, a private liberal arts college in Waterville, Maine.

What it's used for

  • Campus networking for a single college: academic and administrative systems, residence-hall and classroom connectivity, and the college's public-facing web services.

Notable

  • Addresses here are institutional, not consumer. They belong to students, staff and campus systems rather than to an ISP's subscribers, so traffic from this range typically originates on a university campus.
  • It announces exactly one prefix, the legacy 137.146.0.0/16 — a full classful /16 for a college of a few thousand students. That ratio of address space to headcount is the signature of an early-1990s academic allocation, made when addresses were handed out generously and NAT was not yet the norm.

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
AS557University of Maine System69

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-29, 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 1 prefixes · 65.54K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS6056
Registry name
COLBY
Registrant
Colby College
Abuse contact
abuse@colby.edu
Registered
1995-10-24
Last changed
2024-03-27
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS6056
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS6056

Reputation

Classification and threat

Education University, school or national research and education network.

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: 448 networks and 1,849 prefixes, as published 2026-10-29. 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