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	Prefix	Description
	130.113.0.0/16	McMaster University
	130.113.109.0/24	McMaster University
	192.42.5.0/24	McMaster University
	192.42.6.0/24	McMaster University
	2604:1700::/48	McMaster University

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS26677	ORION	✔	✔
	AS7992	Cogeco Connexion Inc.	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS26677	ORION	✔	✔
	AS7992	Cogeco Connexion Inc.	✔	✔

ASHandle:       AS23237
OrgID:          MU
ASName:         MCMASTER
ASNumber:       23237
RegDate:        2002-02-13
Updated:        2012-03-02
Source:         ARIN



OrgID:          MU
OrgName:        McMaster University
CanAllocate:    
Street:         1280 Main St. West
City:           Hamilton
State/Prov:     ON
Country:        CA
PostalCode:     L8S-4M1
RegDate:        1988-08-04
Updated:        2025-10-14
OrgAdminHandle: MDD4-ARIN
OrgTechHandle:  MDD4-ARIN
OrgAbuseHandle: MDD4-ARIN
Source:         ARIN





OrgAdminHandle:       MDD4-ARIN
OrgAdminName:         Mike Diggins
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        MDD4-ARIN
OrgTechName:          Mike Diggins
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       MDD4-ARIN
OrgAbuseName:         Mike Diggins
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-12-30T03:35:02Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
CANARIE	as6509:as-canet4	153
RADB	as174:as-cogc-013	49
ARIN	as-549-as-customers	69
ARIN	as26677:as-rog	12
CANARIE	as6509:as-canarie	204
RADB	as-nexicom	122
ARIN	as26677:as-gigapop4rpkimon	55
LEVEL3	as-sprint-origins	7309
CANARIE	as6509:as-nren	178
RADB	as16631:as-cogc-007	66
RADB	as-hurricanev6	19817
RADB	as-cogeco-transit	48
CANARIE	as26677:as-gigapop	57
ARIN	as-cogeco-transit	48
ARIN	as26677:as-gigapop-peering	55