Autonomous System

AS33657 Comcast Cable Communications, LLC

ISPActiveUnited StatesARIN

AS33657 (CMCS) is an ISP network operated by Comcast Cable Communications, LLC in United States, registered with ARIN. It has 29 IPv4 prefixes with 11,520 addresses and 240 IPv6 prefixes, which makes it the 9,452nd largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses11,520in 29 prefixes
IPv6 prefixes240≈ 2.9 × 10²⁶ addresses
Size rank#9,452of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% 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

29 prefixes · 11,520 addresses
NetworkAddressesFirst – last address
69.67.80.0/204,09669.67.80.0 – 69.67.95.255
192.110.220.0/23512192.110.220.0 – 192.110.221.255
50.201.252.0/2425650.201.252.0 – 50.201.252.255
50.202.117.0/2425650.202.117.0 – 50.202.117.255
50.202.155.0/2425650.202.155.0 – 50.202.155.255
50.203.251.0/2425650.203.251.0 – 50.203.251.255
50.204.116.0/2425650.204.116.0 – 50.204.116.255
50.204.128.0/2425650.204.128.0 – 50.204.128.255
50.205.74.0/2425650.205.74.0 – 50.205.74.255
50.207.162.0/2425650.207.162.0 – 50.207.162.255
50.216.214.0/2425650.216.214.0 – 50.216.214.255
50.218.16.0/2425650.218.16.0 – 50.218.16.255
50.219.87.0/2425650.219.87.0 – 50.219.87.255
50.223.158.0/2425650.223.158.0 – 50.223.158.255
50.223.159.0/2425650.223.159.0 – 50.223.159.255
50.224.212.0/2425650.224.212.0 – 50.224.212.255
50.226.61.0/2425650.226.61.0 – 50.226.61.255
50.232.109.0/2425650.232.109.0 – 50.232.109.255
50.232.173.0/2425650.232.173.0 – 50.232.173.255
50.232.184.0/2425650.232.184.0 – 50.232.184.255
50.235.98.0/2425650.235.98.0 – 50.235.98.255
50.235.236.0/2425650.235.236.0 – 50.235.236.255
50.236.38.0/2425650.236.38.0 – 50.236.38.255
50.236.234.0/2425650.236.234.0 – 50.236.234.255
50.238.163.0/2425650.238.163.0 – 50.238.163.255
The 25 largest of 29. The API and the database have all of them.

IPv6 prefixes

240 prefixes
  • 2001:559:48::/48
  • 2001:559:7a::/48
  • 2001:559:87::/48
  • 2001:559:a2::/48
  • 2001:559:ae::/48
  • 2001:559:db::/48
  • 2001:559:110::/48
  • 2001:559:136::/48
  • 2001:559:16a::/48
  • 2001:559:1da::/48
  • 2001:559:1f8::/48
  • 2001:559:202::/48
  • 2001:559:214::/48
  • 2001:559:246::/48
  • 2001:559:25a::/48
  • 2001:559:25b::/48
  • 2001:559:282::/48
  • 2001:559:284::/48
  • 2001:559:288::/48
  • 2001:559:2b6::/48
  • 2001:559:2ca::/48
  • 2001:559:2cb::/48
  • 2001:559:2f3::/48
  • 2001:559:300::/48
  • 2001:559:304::/48
The 25 largest of 240. The API and the database have all of them.

Query AS33657 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=AS33657&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS33657, with or without a key:

curl "https://api.ipapi.is/?q=69.67.80.1"

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 addressesAS33651 Comcast Cable Communications, LLC83,456 IPv4 addressesAS21508 Comcast Cable Communications, LLC70,144 IPv4 addressesAS33491 Comcast Cable Communications, LLC48,128 IPv4 addressesAS7015 Comcast Cable Communications, LLC47,104 IPv4 addresses

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