asn.dev

Autonomous system

AS19350 CENTENNIALCOLLEGE

Unclassified APNIC

IPv4 addresses 2.30K 6 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly CA
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Centennial College

Canada · AI-generated

education business canada

The AS handle CENTENNIALCOLLEGE is held by Centennial College.

What it's used for

  • The address space carries internal corporate infrastructure, evidenced by netnames such as IDC-CENCOL, CENCOL-CA1, and CENCOL2.
  • The inventory consists of 2304 IPv4 addresses across 6 prefixes, with only 1 observed neighbour, indicating a small, self-contained institutional network rather than a transit or access provider.

Notable

  • All registrants for the announced prefixes are listed as "Centennial College" or "Centennial College; Centennial-IP", fully aligning with the AS holder.
  • The address inventory is finely subdivided into six distinct blocks, reflecting site-by-site segmentation typical of a large educational institution managing multiple campuses or data centers.

CLASSIFICATION - after the card, on its own final line, emit exactly:

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
AS26677ORION549

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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 6 prefixes · 2.30K addresses IPv6 0 prefixes

CountryNamePrefixes
CACanada6

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS19350
Registry name
CENTENNIALCOLLEGE
Registrant
Centennial College
Abuse contact
dnsadmin@centennialcollege.ca
Registered
2000-12-20
Last changed
2024-07-26
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 9 valid, 0 with no ROA
ROAs
6 authorising AS19350
ASPA
no ASPA record
IRR
100% registered · 9 of 9 announcements
Route objects
17 naming AS19350

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: 442 networks and 1,781 prefixes, as published 2026-10-16. 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