Autonomous System

AS5739 University of California, Santa Cruz

EducationActiveUnited StatesARIN

AS5739 (UCSC) is an education network operated by University of California, Santa Cruz in United States, registered with ARIN. It has 2 IPv4 prefixes with 131,072 addresses and 1 IPv6 prefix, which makes it the 1,916th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses131,072in 2 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#1,916of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationUniversity of California, Santa Cruz
AS nameUCSC
Websiteucsc.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contactabuse@ucsc.edu
Registered1995-09-13
Last updated2011-06-29

IPv4 prefixes

2 prefixes · 131,072 addresses
NetworkAddressesFirst – last address
128.114.0.0/1665,536128.114.0.0 – 128.114.255.255
169.233.0.0/1665,536169.233.0.0 – 169.233.255.255

IPv6 prefixes

1 prefix
  • 2607:f5f0::/32

Query AS5739 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=AS5739&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS5739, with or without a key:

curl "https://api.ipapi.is/?q=128.114.0.1"

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