AS23237 McMaster University 🇨🇦 CA

Announcing 5 prefixes, seen at the RIS collectors.

IPv4 prefixes

66,304 (259 × /24)

IPv6 prefixes

1 × /48

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS23237
Name: McMaster University
Organisation: McMaster University
Country: 🇨🇦 CA
RIR: ARIN
Allocated: 2002-02-13

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 5 no ROA (100.0%)

Whois

Fetched from whois.arin.net

ASNumber:       23237
ASName:         MCMASTER
ASHandle:       AS23237
RegDate:        2002-02-13
Updated:        2012-03-02
Ref:            https://rdap.arin.net/registry/autnum/23237

OrgName:        McMaster University
OrgId:          MU
Address:        1280 Main St. West
City:           Hamilton
StateProv:      ON
PostalCode:     L8S-4M1
Country:        CA
RegDate:        1988-08-04
Updated:        2025-10-14
Ref:            https://rdap.arin.net/registry/entity/MU

OrgAbuseHandle: MDD4-ARIN
OrgAbuseName:   Diggins, Mike Donald
OrgAbusePhone:  +1-905-525-9140
OrgAbuseEmail:  mike.diggins@mcmaster.ca
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MDD4-ARIN

OrgTechHandle: MDD4-ARIN
OrgTechName:   Diggins, Mike Donald
OrgTechPhone:  +1-905-525-9140
OrgTechEmail:  mike.diggins@mcmaster.ca
OrgTechRef:    https://rdap.arin.net/registry/entity/MDD4-ARIN