Autonomous system
AS19925 SWCHSC
Unclassified ARIN
Summary
Sunnybrook Health Sciences Centre
healthcare business canada
The AS handle SWCHSC is held by Sunnybrook Health Sciences Centre.
What it's used for
- The address space carries the internal network of Sunnybrook Health Sciences Centre, an academic hospital in Toronto, as indicated by the netname
SUNNYBROOKand registrantSunnybrook Health Sciences Centre. - The AS announces a single IPv4 prefix, 142.76.0.0/16, comprising 65536 addresses, with 0 IPv6 prefixes. It has 2 observed neighbours, a ratio consistent with a site-specific corporate or institutional network rather than a transit provider.
Notable
- The RDAP registrant
Sunnybrook Health Sciences Centrematches the AS holder name, confirming the identity of the operator. - The address inventory consists of a single /16 block, which is a standard allocation for a large institutional site requiring a contiguous range of internal addresses.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 65.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CA | Canada | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS19925- Registry name
- SWCHSC
- Registrant
- Sunnybrook Health Sciences Centre
- Abuse contact
- Myles.Leicester@sunnybrook.ca
- Registered
- 2001-03-02
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 3 valid, 0 with no ROA
- ROAs
- 1 authorising AS19925
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 2 naming AS19925
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 1,771 prefixes, as published 2026-10-15. 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