Autonomous System

AS4201 Oregon State University

EducationActiveUnited StatesARIN

AS4201 (ORST-AS) is an education network operated by Oregon State University in United States, registered with ARIN. It has 3 IPv4 prefixes with 67,840 addresses and 1 IPv6 prefix, which makes it the 3,139th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses67,840in 3 prefixes
IPv6 prefixes1≈ 3.1 × 10²⁶ addresses
Size rank#3,139of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationOregon State University
AS nameORST-AS
Websiteoregonstate.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contactanthony.brock@oregonstate.edu
Registered1995-01-05
Last updated2023-02-23

IPv4 prefixes

3 prefixes · 67,840 addresses
NetworkAddressesFirst – last address
128.193.0.0/1665,536128.193.0.0 – 128.193.255.255
128.193.224.0/212,048128.193.224.0 – 128.193.231.255
199.201.139.0/24256199.201.139.0 – 199.201.139.255

IPv6 prefixes

1 prefix
  • 2620:105:f000::/40

Query AS4201 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=AS4201&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS4201, with or without a key:

curl "https://api.ipapi.is/?q=128.193.0.1"

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