Autonomous System

AS11257 University of Lethbridge

EducationActiveCanadaARIN

AS11257 (UNIVERSITY-LETHBRIDGE) is an education network operated by University of Lethbridge in Canada, registered with ARIN. It has 1 IPv4 prefix with 65,536 addresses, which makes it the 3,631st largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses65,536in 1 prefix
IPv6 prefixes0none
Size rank#3,631of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationUniversity of Lethbridge
AS nameUNIVERSITY-LETHBRIDGE
Websiteulethbridge.ca
Country Canada (CA)
Network typeEducation
RegistryARIN
Abuse contactkeith.knowles@uleth.ca
Registered1998-06-03
Last updated2025-08-12

IPv4 prefixes

1 prefix · 65,536 addresses
NetworkAddressesFirst – last address
142.66.0.0/1665,536142.66.0.0 – 142.66.255.255

IPv6 prefixes

No IPv6 prefixes.

Query AS11257 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS11257&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS11257, with or without a key:

curl "https://api.ipapi.is/?q=142.66.0.1"

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