Autonomous System

AS5661 UNIVERSITY OF SOUTH FLORIDA

EducationActiveUnited StatesARIN

AS5661 (USF) is an education network operated by UNIVERSITY OF SOUTH FLORIDA in United States, registered with ARIN. It has 1 IPv4 prefix with 65,536 addresses and 1 IPv6 prefix, which makes it the 3,596th largest of 82,141 active autonomous systems by IPv4 space.

IPv4 addresses65,536in 1 prefix
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#3,596of 82,141 active ASNs
Abuser scoreVery Low0.03% of its addresses flagged · method

Details

OrganizationUNIVERSITY OF SOUTH FLORIDA
AS nameUSF
Websiteusf.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contactsecurity@usf.edu
Registered1995-07-23
Last updated2022-04-26

IPv4 prefixes

1 prefix · 65,536 addresses
NetworkAddressesFirst – last address
131.247.0.0/1665,536131.247.0.0 – 131.247.255.255

IPv6 prefixes

1 prefix
  • 2607:fe50::/32

Query AS5661 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=AS5661&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS5661, with or without a key:

curl "https://api.ipapi.is/?q=131.247.0.1"

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