Autonomous System

AS823 University of Western Ontario

EducationActiveCanadaARIN

AS823 (UWO-AS) is an education network operated by University of Western Ontario in Canada, registered with ARIN. It has 24 IPv4 prefixes with 128,512 addresses and 1 IPv6 prefix, which makes it the 1,991st largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses128,512in 24 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#1,991of 82,200 active ASNs
Abuser scoreVery Low0.01% of its addresses flagged · method

Details

OrganizationUniversity of Western Ontario
AS nameUWO-AS
Websiteuwo.ca
Country Canada (CA)
Network typeEducation
RegistryARIN
Abuse contactnoc@uwo.ca
Registered1994-03-11
Last updated2021-05-05

IPv4 prefixes

24 prefixes · 128,512 addresses
NetworkAddressesFirst – last address
129.100.0.0/1665,536129.100.0.0 – 129.100.255.255
129.100.0.0/1816,384129.100.0.0 – 129.100.63.255
129.100.128.0/1816,384129.100.128.0 – 129.100.191.255
129.100.96.0/198,192129.100.96.0 – 129.100.127.255
129.100.224.0/198,192129.100.224.0 – 129.100.255.255
129.100.64.0/204,096129.100.64.0 – 129.100.79.255
129.100.80.0/212,048129.100.80.0 – 129.100.87.255
129.100.192.0/23512129.100.192.0 – 129.100.193.255
129.100.196.0/23512129.100.196.0 – 129.100.197.255
129.100.198.0/23512129.100.198.0 – 129.100.199.255
129.100.200.0/23512129.100.200.0 – 129.100.201.255
129.100.202.0/23512129.100.202.0 – 129.100.203.255
129.100.206.0/23512129.100.206.0 – 129.100.207.255
129.100.208.0/23512129.100.208.0 – 129.100.209.255
129.100.210.0/23512129.100.210.0 – 129.100.211.255
129.100.212.0/23512129.100.212.0 – 129.100.213.255
129.100.214.0/23512129.100.214.0 – 129.100.215.255
129.100.216.0/23512129.100.216.0 – 129.100.217.255
129.100.220.0/23512129.100.220.0 – 129.100.221.255
129.100.222.0/23512129.100.222.0 – 129.100.223.255
129.100.0.0/24256129.100.0.0 – 129.100.0.255
129.100.204.0/24256129.100.204.0 – 129.100.204.255
129.100.219.0/24256129.100.219.0 – 129.100.219.255
205.189.1.0/24256205.189.1.0 – 205.189.1.255

IPv6 prefixes

1 prefix
  • 2605:500::/32

Query AS823 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=AS823&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS823, with or without a key:

curl "https://api.ipapi.is/?q=129.100.0.1"

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