AS19925 — SWCHSC

AS19925 announces 1 IPv4 prefixes covering 65,536 addresses and 0 IPv6 prefixes.

About this network

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 SUNNYBROOK and registrant Sunnybrook 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 Centre matches 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.

Announced prefixes

• 142.76.0.0/16

Upstream networks

• AS21949 Beanfield Technologies Inc.
• AS26677 ORION

Adjacent networks

• AS21949 Beanfield Technologies Inc.
• AS26677 ORION

Routing security

• RPKI: 3 valid, 0 invalid and 0 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 33% of announcements registered; 2 route objects.
• Listed in as-sets: AS-549-AS-CUSTOMERS, AS-CDSI, AS-NEXICOM, AS23498:AS-CDSI, AS23498:AS-CUSTOMERS, AS23498:AS-CUSTOMERS2, AS26677:AS-GIGAPOP, AS26677:AS-GIGAPOP-PEERING, AS26677:AS-GIGAPOP4RPKIMON, AS26677:AS-GTATEST.