Autonomous System

AS131 University of California, Santa Barbara

EducationActiveUnited StatesARIN

AS131 (UCSB-NET-AS) is an education network operated by University of California, Santa Barbara in United States, registered with ARIN. It has 5 IPv4 prefixes with 132,096 addresses and 1 IPv6 prefix, which makes it the 1,843rd largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses132,096in 5 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#1,843of 82,200 active ASNs
Abuser scoreVery Low0.01% of its addresses flagged · method

Details

OrganizationUniversity of California, Santa Barbara
AS nameUCSB-NET-AS
Websiteucsb.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contactsecurity@ucsb.edu
Registered1987-09-30
Last updated2024-04-26

IPv4 prefixes

5 prefixes · 132,096 addresses
NetworkAddressesFirst – last address
128.111.0.0/1665,536128.111.0.0 – 128.111.255.255
169.231.0.0/1665,536169.231.0.0 – 169.231.255.255
192.150.216.0/23512192.150.216.0 – 192.150.217.255
192.35.222.0/24256192.35.222.0 – 192.35.222.255
199.120.153.0/24256199.120.153.0 – 199.120.153.255

IPv6 prefixes

1 prefix
  • 2607:f378::/32

Query AS131 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=AS131&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS131, with or without a key:

curl "https://api.ipapi.is/?q=128.111.0.1"

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