AS22909 — COMCAST-22909

AS22909 announces 215 IPv4 prefixes covering 1,075,968 addresses and 69 IPv6 prefixes.

About this network

The AS handle COMCAST-22909 is held by Comcast Cable Communications, LLC.

What it's used for

• The address space carries residential cable internet and TV services, evidenced by reverse DNS entries like c-68-52-127-255.hsd1.tn.comcast.net and netnames such as KNOXVILLE-CPE-16 and NASHVILLE-17.
• With 1,075,968 IPv4 addresses announced across 215 prefixes and only 41 observed neighbours, the high address-to-neighbour ratio indicates a large access or eyeball network rather than a transit provider.

Notable

• Registrants are consistent with the announcer, appearing as either Comcast Cable Communications, LLC or Comcast Cable Communications, Inc.
• The address inventory is finely subdivided into city-specific blocks (e.g., Knoxville, Nashville, Chattanooga), reflecting a site-by-site segmentation typical of a major regional cable operator.
• The network was first seen in RIS in 2001, indicating a long-standing presence in the routing table.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 23.24.224.0/20
• 23.31.160.0/20
• 24.11.192.0/18
• 24.124.130.0/23
• 24.124.168.0/24
• 50.76.160.0/20
• 50.193.176.0/20
• 50.194.0.0/20
• 50.197.240.0/20
• 50.201.4.0/24
• 50.202.69.0/24
• 50.210.16.0/20
• 50.213.144.0/20
• 50.214.88.0/22
• 50.216.148.0/24
• 50.221.219.0/24
• 50.231.153.0/24
• 50.232.105.0/24
• 50.240.96.0/20
• 50.241.192.0/20
• 50.243.112.0/20
• 50.244.92.0/22
• 50.248.96.0/20
• 50.249.144.0/20
• 50.252.64.0/20
• 50.254.224.0/19
• 64.139.72.0/23
• 64.139.83.0/24
• 64.139.84.0/23
• 66.208.214.0/23
• 66.208.254.0/23
• 67.172.96.0/20
• 67.177.160.0/19
• 67.187.64.0/18
• 68.32.96.0/20
• 68.32.224.0/19
• 68.34.144.0/20
• 68.34.160.0/19
• 68.34.192.0/19
• 68.42.0.0/19
• 68.46.240.0/20
• 68.47.160.0/19
• 68.47.192.0/18
• 68.52.0.0/16
• 68.53.0.0/17
• 68.53.128.0/19
• 68.53.160.0/20
• 68.53.192.0/18
• 68.54.32.0/19
• 68.54.64.0/20
• 68.54.176.0/20
• 68.54.192.0/20
• 68.54.224.0/20
• 68.57.0.0/17
• 68.59.128.0/19
• 68.59.176.0/20
• 68.59.192.0/18
• 68.60.0.0/19
• 68.62.176.0/20
• 68.63.160.0/20
• 68.63.240.0/20
• 68.84.80.0/20
• 68.85.2.0/24
• 68.85.38.0/24
• 68.85.50.0/23
• 68.85.66.0/24
• 68.85.135.0/24
• 68.85.171.0/24
• 68.85.174.0/24
• 68.85.198.0/23
• 68.85.206.0/23
• 68.86.40.0/24
• 68.86.51.0/24
• 68.86.58.0/24
• 68.86.136.0/23
• 68.86.148.0/22
• 68.86.176.0/24
• 68.86.190.0/23
• 68.86.194.0/23
• 68.87.224.0/24
• 69.137.64.0/18
• 69.138.32.0/19
• 69.138.144.0/20
• 69.139.112.0/20
• 69.139.205.0/24
• 69.139.212.0/23
• 69.180.192.0/18
• 69.241.2.0/23
• 69.241.27.0/24
• 69.241.78.0/24
• 69.241.93.0/24
• 69.241.127.0/24
• 69.243.192.0/20
• 69.244.192.0/20
• 69.245.0.0/18
• 69.247.0.0/19
• 69.247.128.0/19
• 69.252.29.0/24
• 69.252.48.0/24
• 69.252.55.0/24

and 184 more.

Upstream networks

• AS7922 Comcast Cable Communications, LLC

Downstream networks

• AS19685 CSI Telecom Group, Inc
• AS17123 Team Health, Inc.
• AS11086 Pitney Bowes Incorporated
• AS62958 ADT LLC
• AS25712 Computer Services Inc
• AS54113 Fastly, Inc.
• AS11297 Lipscomb University
• AS26335 Middle Tennessee State University
• AS26992 CIMplify
• AS23156 The Vincit Group
• AS40892 EFT Source, Inc.
• AS393453 Smile Direct Club, LLC
• AS400386 Apogee Telecom Inc.
• AS402675 City
• AS395665 EDFINANCIAL SERVICES, LLC
• AS4374 CKE Restaurants Holdings, Inc.
• AS46512 University of Tennessee Medical Center
• AS55253 Creative Artists Agency, LLC
• AS400962 Fourteen Foods, LLC
• AS396046 Pinnacle Financial Partners, Inc.
• AS13702 Ingram Book Group
• AS26450 CTDI
• AS54201 We Link Networks LLC
• AS14714 Gestalt
• AS3450 University of Tennessee

Adjacent networks

• AS7922 Comcast Cable Communications, LLC
• AS19685 CSI Telecom Group, Inc
• AS3356 Level 3 Parent, LLC
• AS17123 Team Health, Inc.
• AS11086 Pitney Bowes Incorporated
• AS62958 ADT LLC
• AS25712 Computer Services Inc
• AS54113 Fastly, Inc.
• AS11297 Lipscomb University
• AS26335 Middle Tennessee State University
• AS26992 CIMplify
• AS23156 The Vincit Group
• AS40892 EFT Source, Inc.
• AS400386 Apogee Telecom Inc.
• AS393453 Smile Direct Club, LLC
• AS402675 City
• AS395665 EDFINANCIAL SERVICES, LLC
• AS4374 CKE Restaurants Holdings, Inc.
• AS55253 Creative Artists Agency, LLC
• AS46512 University of Tennessee Medical Center
• AS400962 Fourteen Foods, LLC
• AS396046 Pinnacle Financial Partners, Inc.
• AS13702 Ingram Book Group
• AS26450 CTDI
• AS14714 Gestalt