Autonomous System

AS101 University of Washington

EducationActiveUnited StatesARIN

AS101 (WASH-NSF-AS) is an education network operated by University of Washington in United States, registered with ARIN. It has 4 IPv4 prefixes with 12,288 addresses and 4 IPv6 prefixes, which makes it the 9,067th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses12,288in 4 prefixes
IPv6 prefixes4≈ 1.2 × 10²⁹ addresses
Size rank#9,067of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationUniversity of Washington
AS nameWASH-NSF-AS
Websitewashington.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contactsecurity@uw.edu
Registered1987-03-31
Last updated2021-10-01

IPv4 prefixes

4 prefixes · 12,288 addresses
NetworkAddressesFirst – last address
207.231.240.0/204,096207.231.240.0 – 207.231.255.255
209.124.176.0/204,096209.124.176.0 – 209.124.191.255
209.124.176.0/212,048209.124.176.0 – 209.124.183.255
209.124.184.0/212,048209.124.184.0 – 209.124.191.255

IPv6 prefixes

4 prefixes
  • 2001:1860::/32
  • 2001:1860:4000::/34
  • 2001:1860:8000::/34
  • 2001:504:b::/48

Query AS101 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=AS101&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS101, with or without a key:

curl "https://api.ipapi.is/?q=207.231.240.1"

Other networks of University of Washington

AS73 University of Washington239,104 IPv4 addresses

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