Autonomous System

AS33651 Comcast Cable Communications, LLC

ISPActiveUnited StatesARIN

AS33651 (CMCS) is an ISP network operated by Comcast Cable Communications, LLC in United States, registered with ARIN. It has 107 IPv4 prefixes with 83,456 addresses and 186 IPv6 prefixes, which makes it the 2,603rd largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses83,456in 107 prefixes
IPv6 prefixes186≈ 2.4 × 10²⁶ addresses
Size rank#2,603of 82,200 active ASNs
Abuser scoreLow0.16% of its addresses flagged · method

Details

OrganizationComcast Cable Communications, LLC
AS nameCMCS
Websitecomcast.com
Country United States (US)
Network typeISP
RegistryARIN
Abuse contactabuse@comcast.net
Registered2005-02-16
Last updated2021-01-25

IPv4 prefixes

107 prefixes · 83,456 addresses
NetworkAddressesFirst – last address
140.89.64.0/1816,384140.89.64.0 – 140.89.127.255
9.142.96.0/198,1929.142.96.0 – 9.142.127.255
135.132.64.0/198,192135.132.64.0 – 135.132.95.255
9.142.48.0/204,0969.142.48.0 – 9.142.63.255
138.226.64.0/204,096138.226.64.0 – 138.226.79.255
64.84.96.0/212,04864.84.96.0 – 64.84.103.255
64.84.120.0/212,04864.84.120.0 – 64.84.127.255
138.226.48.0/212,048138.226.48.0 – 138.226.55.255
138.226.112.0/212,048138.226.112.0 – 138.226.119.255
138.226.192.0/212,048138.226.192.0 – 138.226.199.255
74.120.252.0/221,02474.120.252.0 – 74.120.255.255
135.132.72.0/221,024135.132.72.0 – 135.132.75.255
135.132.76.0/221,024135.132.76.0 – 135.132.79.255
138.226.196.0/221,024138.226.196.0 – 138.226.199.255
169.128.80.0/221,024169.128.80.0 – 169.128.83.255
169.128.104.0/221,024169.128.104.0 – 169.128.107.255
169.128.228.0/221,024169.128.228.0 – 169.128.231.255
9.142.118.0/235129.142.118.0 – 9.142.119.255
16.5.8.0/2351216.5.8.0 – 16.5.9.255
24.104.138.0/2351224.104.138.0 – 24.104.139.255
40.27.174.0/2351240.27.174.0 – 40.27.175.255
50.201.8.0/2351250.201.8.0 – 50.201.9.255
50.206.120.0/2351250.206.120.0 – 50.206.121.255
74.1.24.0/2351274.1.24.0 – 74.1.25.255
104.247.212.0/23512104.247.212.0 – 104.247.213.255
The 25 largest of 107. The API and the database have all of them.

IPv6 prefixes

186 prefixes
  • 2620:10a:6000::/44
  • 2001:559:e::/48
  • 2001:559:6b::/48
  • 2001:559:6e::/48
  • 2001:559:77::/48
  • 2001:559:78::/48
  • 2001:559:9c::/48
  • 2001:559:9d::/48
  • 2001:559:9e::/48
  • 2001:559:a4::/48
  • 2001:559:c1::/48
  • 2001:559:f3::/48
  • 2001:559:104::/48
  • 2001:559:106::/48
  • 2001:559:17e::/48
  • 2001:559:197::/48
  • 2001:559:1c0::/48
  • 2001:559:1c1::/48
  • 2001:559:1ed::/48
  • 2001:559:20e::/48
  • 2001:559:218::/48
  • 2001:559:21a::/48
  • 2001:559:24f::/48
  • 2001:559:259::/48
  • 2001:559:262::/48
The 25 largest of 186. The API and the database have all of them.

Query AS33651 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=AS33651&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS33651, with or without a key:

curl "https://api.ipapi.is/?q=140.89.64.1"

Other networks of Comcast Cable Communications, LLC

6 of 11
AS7922 Comcast Cable Communications, LLC68,336,896 IPv4 addressesAS20214 Comcast Cable Communications, LLC140,544 IPv4 addressesAS21508 Comcast Cable Communications, LLC70,144 IPv4 addressesAS33491 Comcast Cable Communications, LLC48,128 IPv4 addressesAS7015 Comcast Cable Communications, LLC47,104 IPv4 addressesAS33659 Comcast Cable Communications, LLC31,488 IPv4 addresses

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