Autonomous System

AS3676 University of Iowa

EducationActiveUnited StatesARIN

AS3676 (UIOWA-AS) is an education network operated by University of Iowa in United States, registered with ARIN. It has 3 IPv4 prefixes with 131,328 addresses and 1 IPv6 prefix, which makes it the 1,886th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses131,328in 3 prefixes
IPv6 prefixes1≈ 9.7 × 10²⁴ addresses
Size rank#1,886of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationUniversity of Iowa
AS nameUIOWA-AS
Websiteuiowa.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contactabuse@uiowa.edu
Registered1994-06-14
Last updated2025-06-02

IPv4 prefixes

3 prefixes · 131,328 addresses
NetworkAddressesFirst – last address
128.255.0.0/1665,536128.255.0.0 – 128.255.255.255
129.255.0.0/1665,536129.255.0.0 – 129.255.255.255
198.49.182.0/24256198.49.182.0 – 198.49.182.255

IPv6 prefixes

1 prefix
  • 2620:0:e50::/45

Query AS3676 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=AS3676&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS3676, with or without a key:

curl "https://api.ipapi.is/?q=128.255.0.1"

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