Autonomous System

AS20214 Comcast Cable Communications, LLC

ISPActiveUnited StatesARIN

AS20214 (COMCAST-20214) is an ISP network operated by Comcast Cable Communications, LLC in United States, registered with ARIN. It has 21 IPv4 prefixes with 140,288 addresses and 91 IPv6 prefixes, which makes it the 1,679th largest of 82,558 active autonomous systems by IPv4 space.

IPv4 addresses140,288in 21 prefixes
IPv6 prefixes91≈ 1.1 × 10²⁶ addresses
Size rank#1,679of 82,558 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationComcast Cable Communications, LLC
AS nameCOMCAST-20214
Websitecomcast.com
Country United States (US)
Network typeISP
RegistryARIN
Abuse contactabuse@comcast.net
Registered2001-04-06
Last updated2021-01-25

IPv4 prefixes

21 prefixes · 140,288 addresses
NetworkAddressesFirst – last address
147.137.0.0/1665,536147.137.0.0 – 147.137.255.255
168.221.0.0/1665,536168.221.0.0 – 168.221.255.255
168.221.176.0/204,096168.221.176.0 – 168.221.191.255
50.205.246.0/2351250.205.246.0 – 50.205.247.255
50.233.138.0/2351250.233.138.0 – 50.233.139.255
50.150.146.0/2425650.150.146.0 – 50.150.146.255
50.200.25.0/2425650.200.25.0 – 50.200.25.255
50.202.4.0/2425650.202.4.0 – 50.202.4.255
50.202.167.0/2425650.202.167.0 – 50.202.167.255
50.202.227.0/2425650.202.227.0 – 50.202.227.255
50.216.237.0/2425650.216.237.0 – 50.216.237.255
50.222.172.0/2425650.222.172.0 – 50.222.172.255
50.224.11.0/2425650.224.11.0 – 50.224.11.255
50.224.22.0/2425650.224.22.0 – 50.224.22.255
50.224.86.0/2425650.224.86.0 – 50.224.86.255
50.224.249.0/2425650.224.249.0 – 50.224.249.255
50.229.72.0/2425650.229.72.0 – 50.229.72.255
50.237.82.0/2425650.237.82.0 – 50.237.82.255
50.237.224.0/2425650.237.224.0 – 50.237.224.255
141.193.53.0/24256141.193.53.0 – 141.193.53.255
168.221.171.0/24256168.221.171.0 – 168.221.171.255

IPv6 prefixes

91 prefixes
  • 2001:559:ea::/48
  • 2001:559:116::/48
  • 2001:559:140::/48
  • 2001:559:142::/48
  • 2001:559:160::/48
  • 2001:559:168::/48
  • 2001:559:18b::/48
  • 2001:559:1ac::/48
  • 2001:559:1cb::/48
  • 2001:559:1cd::/48
  • 2001:559:205::/48
  • 2001:559:232::/48
  • 2001:559:281::/48
  • 2001:559:2a0::/48
  • 2001:559:2cf::/48
  • 2001:559:2f8::/48
  • 2001:559:386::/48
  • 2001:559:3e6::/48
  • 2001:559:401::/48
  • 2001:559:463::/48
  • 2001:559:4d4::/48
  • 2001:559:4ef::/48
  • 2001:559:514::/48
  • 2001:559:554::/48
  • 2001:559:55c::/48
The 25 largest of 91. The API and the database have all of them.

Query AS20214 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=AS20214&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS20214, with or without a key:

curl "https://api.ipapi.is/?q=147.137.0.1"

Other networks of Comcast Cable Communications, LLC

6 of 11
AS7922 Comcast Cable Communications, LLC68,337,664 IPv4 addressesAS33651 Comcast Cable Communications, LLC87,040 IPv4 addressesAS21508 Comcast Cable Communications, LLC70,400 IPv4 addressesAS33491 Comcast Cable Communications, LLC48,128 IPv4 addressesAS7015 Comcast Cable Communications, LLC47,104 IPv4 addressesAS33659 Comcast Cable Communications, LLC30,208 IPv4 addresses

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