Autonomous system
AS239 UTORONTO-AS
Unclassified ARIN
Summary
University of Toronto
education university research legacy
The University of Toronto network (UTORONTO-AS), serving Canada's largest university.
What it's used for
- Campus, research, and administrative networking for the University of Toronto.
Notable
- An institutional / education network, not commercial hosting.
- The low AS number reflects an early Canadian connection to the internet, when numbers were handed out roughly sequentially.
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
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Toronto Internet Exchange | Toronto, Canada | 206.108.34.5 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 8 prefixes · 331K addresses IPv6 26 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CA | Canada | 34 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS239- Registry name
- UTORONTO-AS
- Registrant
- University of Toronto
- Abuse contact
- eis.net.eng@utoronto.ca
- Registered
- 1988-09-20
- Last changed
- 2009-07-31
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 18 with no ROA
- ROAs
- 0 authorising AS239
- ASPA
- no ASPA record
- IRR
- 100% registered · 18 of 18 announcements
- Route objects
- 12 naming AS239
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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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