Autonomous System

AS194 University Corporation for Atmospheric Research

BusinessActiveUnited StatesARIN

AS194 (UCAR-AS) is a business network operated by University Corporation for Atmospheric Research in United States, registered with ARIN. It has 5 IPv4 prefixes with 67,328 addresses and 1 IPv6 prefix, which makes it the 3,197th largest of 82,141 active autonomous systems by IPv4 space.

IPv4 addresses67,328in 5 prefixes
IPv6 prefixes1≈ 3.1 × 10²⁶ addresses
Size rank#3,197of 82,141 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationUniversity Corporation for Atmospheric Research
AS nameUCAR-AS
Websiteucar.edu
Country United States (US)
Network typeBusiness
RegistryARIN
Abuse contactabuse@ucar.edu
Registered1988-05-26
Last updated2026-05-11

IPv4 prefixes

5 prefixes · 67,328 addresses
NetworkAddressesFirst – last address
128.117.0.0/1665,536128.117.0.0 – 128.117.255.255
128.117.208.0/221,024128.117.208.0 – 128.117.211.255
129.19.156.0/24256129.19.156.0 – 129.19.156.255
192.43.244.0/24256192.43.244.0 – 192.43.244.255
192.52.106.0/24256192.52.106.0 – 192.52.106.255

IPv6 prefixes

1 prefix
  • 2620:117:2000::/40

Query AS194 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=AS194&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS194, with or without a key:

curl "https://api.ipapi.is/?q=128.117.0.1"

Other networks of University Corporation for Atmospheric Research

AS14041 University Corporation for Atmospheric Research198,912 IPv4 addresses

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