asn.dev

Autonomous system

AS33105 HDSB

Unclassified ARIN

IPv4 addresses 2.56K 5 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

Halton District School Board

Canada · AI-generated

education business canada

HDSB is operated by Halton District School Board.

What it's used for

  • The address space is registered under the netname NETUTILS by Internet Utilities NA LLC, indicating the prefixes are leased or managed by a third-party provider rather than owned directly by the school board.
  • The AS announces 2560 IPv4 addresses across 5 prefixes with only 1 observed neighbour, a ratio typical of a small, isolated access network or internal corporate estate rather than a transit provider.

Notable

  • The registrant Internet Utilities NA LLC differs from the announcer Halton District School Board, suggesting the address space is leased or historically associated with a different entity.
  • The inventory consists of five contiguous IPv4 prefixes within the 199.235.0.0/16 range, with no IPv6 prefixes announced.

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
AS7992Cogeco Connexion Inc.342

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 5 prefixes · 2.56K addresses IPv6 0 prefixes

CountryNamePrefixes
CACanada5

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS33105
Registry name
HDSB
Registrant
Halton District School Board
Abuse contact
sabrim@hdsb.ca
Registered
2014-05-30
Last changed
2014-05-30
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 6 valid, 0 with no ROA
ROAs
6 authorising AS33105
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
5 naming AS33105

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