asn.dev

Autonomous system

AS14661 LAURENTIANU

Unclassified ARIN

IPv4 addresses 48.90K 8 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly CA
Exchanges 0 recorded by PCH
Upstreams 2 1 downstream
Flagged prefixes 0 none

Summary

Laurentian University

Canada · AI-generated

education research infrastructure

A halving chain down one range with two pieces missing, and a /24 from an entirely different block that is the only one filed under the university's full name.

What it's used for

  • A university's campus network. 48,896 addresses across eight IPv4 prefixes, with two observed BGP neighbours and no IPv6 announced.

Notable

  • Seven prefixes sit inside 142.51: two /18s, a /19, a /20, a /21, a /22 and a /23, all carrying the netname LARU.
  • The eighth is 192.26.235.0/24, and it alone carries the netname LAURENTIAN.
  • The seven do not cover the range: the top quarter is absent, and so is a /23 in the middle of the lower half.
  • Eighteen addresses were queried for reverse DNS and none returned a name.

Interesting

  • The pieces halve neatly and then stop, twice. Whatever occupies the gaps is not announced through this AS, so either it sits behind somebody else's routing or it is simply unused and never advertised. A range that looks contiguous in an allocation record rarely is in the routing table.
  • The odd /24 comes from a range unrelated to the rest, and it is the only block whose netname spells the institution out. Blocks acquired separately get filed separately, and the four-letter abbreviation was somebody's later shorthand.
  • Two neighbours holding a campus this size. Canadian universities reach the internet through a shared research network, and the second adjacency is what keeps teaching online when the first drops.
  • Nothing answers a reverse lookup on any address sampled.

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

2 upstream, 1 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS26677ORION336
AS11522Greater Sudbury Telecommunications Inc.171

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 8 prefixes · 48.90K addresses IPv6 0 prefixes

CountryNamePrefixes
CACanada8

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS14661
Registry name
LAURENTIANU
Registrant
Laurentian University of Sudbury
Abuse contact
noc@laurentian.ca
Registered
2000-01-24
Last changed
2023-05-31
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 8 valid, 0 with no ROA
ROAs
4 authorising AS14661
ASPA
no ASPA record
IRR
100% registered · 8 of 8 announcements
Route objects
9 naming AS14661

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 1,784 prefixes, as published 2026-10-19. 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