Autonomous System

AS73 University of Washington

EducationActiveUnited StatesARIN

AS73 (WASHINGTON-AS) is an education network operated by University of Washington in United States, registered with ARIN. It has 10 IPv4 prefixes with 239,104 addresses and 1 IPv6 prefix, which makes it the 1,133rd largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses239,104in 10 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#1,133of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationUniversity of Washington
AS nameWASHINGTON-AS
Websitewashington.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contactabuse@uw.edu
Registered1986-05-05
Last updated2021-10-01

IPv4 prefixes

10 prefixes · 239,104 addresses
NetworkAddressesFirst – last address
128.95.0.0/1665,536128.95.0.0 – 128.95.255.255
128.208.0.0/1665,536128.208.0.0 – 128.208.255.255
140.142.0.0/1665,536140.142.0.0 – 140.142.255.255
69.91.192.0/1816,38469.91.192.0 – 69.91.255.255
173.250.160.0/198,192173.250.160.0 – 173.250.191.255
198.48.64.0/198,192198.48.64.0 – 198.48.95.255
205.175.96.0/198,192205.175.96.0 – 205.175.127.255
108.179.140.0/221,024108.179.140.0 – 108.179.143.255
192.26.136.0/24256192.26.136.0 – 192.26.136.255
192.42.144.0/24256192.42.144.0 – 192.42.144.255

IPv6 prefixes

1 prefix
  • 2607:4000::/32

Query AS73 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=AS73&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS73, with or without a key:

curl "https://api.ipapi.is/?q=128.95.0.1"

Other networks of University of Washington

AS101 University of Washington12,288 IPv4 addresses

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