AS239 University of Toronto

UTORONTO-AS - University of Toronto · registered in Canada

IPv4 addresses331,2648 prefixes · 0.011% of announced IPv4

Rank in Canada#24largest network in CA by IPv4 space, of 1,575 · 0.62% of CA

Rank worldwide#742of 79,396 networks with IPv4

IPv6257 x /32 (16,842,752 x /48)26 prefixes

CountryCanada1,622 ASNs registered there

Open AS239 in ASN lookup Look up an IP in this network (128.100.0.1) All networks in Canada

IPv4 prefixes

All 8 prefixes, in address order.

128.100.0.0/16
138.51.0.0/16
142.1.0.0/16
142.150.0.0/15
192.12.174.0/24
192.12.176.0/21
192.75.254.0/24
192.82.128.0/22

IPv6 prefixes

All 26 prefixes.

2606:fa00::/32
2631:1000::/31
2631:1002::/43
2631:1002:20::/47
2631:1002:22::/48
2631:1002:23::/48
2631:1002:24::/46
2631:1002:28::/45
2631:1002:30::/44
2631:1002:40::/42
2631:1002:80::/41
2631:1002:100::/40
2631:1002:200::/39
2631:1002:400::/38
2631:1002:800::/37
2631:1002:1000::/36
2631:1002:2000::/35
2631:1002:4000::/34
2631:1002:8000::/33
2631:1003::/32
2631:1004::/30
2631:1008::/29
2631:1010::/28
2631:1020::/27
2631:1040::/26
2631:1080::/25

Similar-sized networks in Canada

ASNNameIPv4 addresses

AS611#21 NECN-1-611 - NB-PEI Educational Computer Network344,064

AS1403#22 EBOX - EBOX340,992

AS11814#23 DISTRIBUTEL-AS11814 - Distributel Communications Limited332,544

AS393952#25 GOANET - Service Alberta331,008

AS55286#26 SERVER-MANIA - B2 Net Solutions Inc.318,464

AS11489#27 BACI - Bell Canada308,480

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources