Autonomous System

AS36103 Central Utah Telephone, Inc.

ISPActiveUnited StatesARIN

AS36103 (CENTRALUTAH) is an ISP network operated by Central Utah Telephone, Inc. in United States, registered with ARIN. It has 137 IPv4 prefixes with 96,256 addresses and 19 IPv6 prefixes, which makes it the 2,392nd largest of 82,558 active autonomous systems by IPv4 space.

IPv4 addresses96,256in 137 prefixes
IPv6 prefixes19≈ 1.6 × 10²⁹ addresses
Size rank#2,392of 82,558 active ASNs
Abuser scoreVery Low0.02% of its addresses flagged · method

Details

OrganizationCentral Utah Telephone, Inc.
AS nameCENTRALUTAH
Websitecentracom.com
Country United States (US)
Network typeISP
RegistryARIN
Abuse contactabuse@centracom.com
Registered2006-09-14
Last updated2026-09-01

IPv4 prefixes

137 prefixes · 96,256 addresses
NetworkAddressesFirst – last address
148.85.0.0/1816,384148.85.0.0 – 148.85.63.255
23.88.160.0/204,09623.88.160.0 – 23.88.175.255
64.72.208.0/204,09664.72.208.0 – 64.72.223.255
64.77.240.0/204,09664.77.240.0 – 64.77.255.255
67.207.32.0/204,09667.207.32.0 – 67.207.47.255
69.163.64.0/204,09669.163.64.0 – 69.163.79.255
202.69.144.0/204,096202.69.144.0 – 202.69.159.255
204.225.16.0/204,096204.225.16.0 – 204.225.31.255
205.197.208.0/204,096205.197.208.0 – 205.197.223.255
74.50.216.0/212,04874.50.216.0 – 74.50.223.255
63.78.116.0/221,02463.78.116.0 – 63.78.119.255
63.78.212.0/221,02463.78.212.0 – 63.78.215.255
65.49.84.0/221,02465.49.84.0 – 65.49.87.255
65.49.96.0/221,02465.49.96.0 – 65.49.99.255
65.49.116.0/221,02465.49.116.0 – 65.49.119.255
65.49.120.0/221,02465.49.120.0 – 65.49.123.255
65.203.16.0/221,02465.203.16.0 – 65.203.19.255
67.207.32.0/221,02467.207.32.0 – 67.207.35.255
68.70.232.0/221,02468.70.232.0 – 68.70.235.255
198.135.172.0/221,024198.135.172.0 – 198.135.175.255
204.225.16.0/221,024204.225.16.0 – 204.225.19.255
23.88.160.0/2351223.88.160.0 – 23.88.161.255
64.77.208.0/2351264.77.208.0 – 64.77.209.255
65.49.6.0/2351265.49.6.0 – 65.49.7.255
65.49.58.0/2351265.49.58.0 – 65.49.59.255
The 25 largest of 137. The API and the database have all of them.

IPv6 prefixes

19 prefixes
  • 2604:76c0::/32
  • 2606:db40::/32
  • 2604:76c0:deac::/47
  • 2001:470:e4::/48
  • 2604:76c0:43::/48
  • 2604:76c0:44::/48
  • 2604:76c0:a74::/48
  • 2604:76c0:21ed::/48
  • 2604:76c0:21ef::/48
  • 2604:76c0:24ed::/48
  • 2604:76c0:24ef::/48
  • 2604:76c0:26ef::/48
  • 2604:76c0:75ed::/48
  • 2604:76c0:75ef::/48
  • 2604:76c0:a188::/48
  • 2604:76c0:deec::/48
  • 2604:76c0:deed::/48
  • 2604:76c0:fafa::/48
  • 2604:76c0:feed::/48

Query AS36103 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=AS36103&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS36103, with or without a key:

curl "https://api.ipapi.is/?q=148.85.0.1"

Largest networks in United States

AS749 United States Department of Defense (DoD)227,398,656 IPv4 addressesAS16509 Amazon.com, Inc.218,488,832 IPv4 addressesAS7018 AT&T Enterprises, LLC117,261,056 IPv4 addressesAS8075 Microsoft Corporation81,467,904 IPv4 addressesAS721 United States Department of Defense (DoD)72,988,416 IPv4 addressesAS7922 Comcast Cable Communications, LLC68,337,664 IPv4 addresses