AS33489 — COMCAST-33489

AS33489 announces 186 IPv4 prefixes covering 648,192 addresses and 61 IPv6 prefixes.

About this network

COMCAST-33489 is operated by Comcast Cable Communications, LLC.

What it's used for

• The address space carries residential cable internet traffic, evidenced by reverse DNS entries like c-24-129-63-255.hsd1.fl.comcast.net and netnames such as JACKSONVILLE-CPE-1 and CHARLESTON-CPE-16.
• The AS announces 648192 IPv4 addresses across 186 prefixes and 61 IPv6 prefixes, while maintaining only 23 observed neighbours, a ratio characteristic of a large access network.

Notable

• Registrants for the largest prefixes are consistently Comcast Cable Communications, LLC, with one entry (SAVANNAH-25) listed under Comcast Comcast Cable Communications, Inc.
• The inventory is heavily concentrated in the Jacksonville, Florida region, as indicated by multiple JACKSONVILLE-CPE netnames, alongside smaller allocations in Savannah and Charleston.
• The address inventory consists of numerous /17 and /18 blocks, reflecting a finely subdivided corporate estate for regional cable operations.

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

Announced prefixes

• 24.11.128.0/20
• 24.11.160.0/19
• 24.124.132.0/23
• 24.129.0.0/17
• 50.73.12.0/22
• 50.73.240.0/20
• 50.76.192.0/21
• 50.77.0.0/22
• 50.79.80.0/20
• 50.184.176.0/20
• 50.184.224.0/19
• 50.193.160.0/20
• 50.193.224.0/22
• 50.193.248.0/21
• 50.194.216.0/21
• 50.196.96.0/19
• 50.197.228.0/22
• 50.200.193.0/24
• 50.201.41.0/24
• 50.202.221.0/24
• 50.205.34.0/24
• 50.215.192.0/20
• 50.227.73.0/24
• 50.230.87.0/24
• 50.238.249.0/24
• 50.240.68.0/22
• 50.240.72.0/21
• 50.240.112.0/20
• 50.244.64.0/20
• 50.244.80.0/21
• 50.247.32.0/21
• 50.249.128.0/20
• 50.251.0.0/22
• 50.252.144.0/21
• 50.252.184.0/22
• 50.253.64.0/20
• 64.139.68.0/23
• 66.177.0.0/17
• 66.177.128.0/18
• 66.177.192.0/20
• 66.177.224.0/20
• 66.208.200.0/22
• 67.174.160.0/20
• 67.187.32.0/19
• 67.190.192.0/18
• 67.191.96.0/20
• 68.85.58.0/24
• 68.85.93.0/24
• 68.85.94.0/23
• 68.85.123.0/24
• 68.85.225.0/24
• 68.86.23.0/24
• 68.86.130.0/23
• 68.86.144.0/23
• 68.86.168.0/22
• 68.86.250.0/23
• 68.87.56.0/22
• 68.87.164.0/22
• 68.87.253.0/24
• 69.136.32.0/20
• 69.136.192.0/20
• 69.139.187.0/24
• 69.180.64.0/19
• 69.241.4.0/24
• 69.241.106.0/24
• 69.242.192.0/20
• 69.245.64.0/18
• 69.252.42.0/23
• 69.252.51.0/24
• 69.252.52.0/24
• 69.254.64.0/20
• 70.88.12.0/23
• 70.88.52.0/23
• 70.89.12.0/22
• 70.89.79.0/24
• 70.89.81.0/24
• 70.89.84.0/22
• 70.89.148.0/22
• 70.90.252.0/23
• 70.91.144.0/21
• 71.25.72.0/21
• 71.25.208.0/20
• 71.25.240.0/21
• 71.197.32.0/19
• 71.199.80.0/20
• 71.199.224.0/19
• 71.203.128.0/18
• 71.204.224.0/19
• 71.226.64.0/20
• 71.226.96.0/20
• 71.226.160.0/20
• 71.228.128.0/20
• 71.229.32.0/19
• 71.229.64.0/19
• 74.92.176.0/23
• 74.92.182.0/24
• 74.93.54.0/23
• 74.93.164.0/23
• 74.93.168.0/21
• 74.94.242.0/23

and 147 more.

Upstream networks

• AS7922 Comcast Cable Communications, LLC
• AS3356 Level 3 Parent, LLC

Downstream networks

• AS10851 St Johns County BOCC
• AS400952 KISS NAIL PRODUCTS, INC
• AS399653 Charleston County Aviation Authority
• AS395202 Bradford County Board of County Commissioners
• AS54135 TEGNA Inc.
• AS14625 PGA Tour
• AS36040 Google LLC
• AS36174 Baptist Health System
• AS26298 Florida Blue
• AS31977 Florida East Coast Railway LLC
• AS40429 SETEL
• AS13335 Cloudflare, Inc.
• AS395955 Interline Brands, Inc.
• AS17397 Paysafe
• AS17145 THE ENERGY AUTHORITY
• AS17073 Allegis Group
• AS29919 SELECT PORTFOLIO SERVICING INC
• AS29871 Savannah College of Art and Design
• AS398990 JACKSONVILLE AVIATION AUTHORITY
• AS395398 Putnam County School District
• AS31847 Facility Automation Solutions, Inc.

Adjacent networks

• AS7922 Comcast Cable Communications, LLC
• AS3356 Level 3 Parent, LLC
• AS10851 St Johns County BOCC
• AS400952 KISS NAIL PRODUCTS, INC
• AS395202 Bradford County Board of County Commissioners
• AS399653 Charleston County Aviation Authority
• AS54135 TEGNA Inc.
• AS36040 Google LLC
• AS14625 PGA Tour
• AS36174 Baptist Health System
• AS26298 Florida Blue
• AS31977 Florida East Coast Railway LLC
• AS40429 SETEL
• AS13335 Cloudflare, Inc.
• AS395955 Interline Brands, Inc.
• AS17145 THE ENERGY AUTHORITY
• AS17397 Paysafe
• AS17073 Allegis Group
• AS29919 SELECT PORTFOLIO SERVICING INC
• AS29871 Savannah College of Art and Design
• AS395398 Putnam County School District
• AS398990 JACKSONVILLE AVIATION AUTHORITY
• AS31847 Facility Automation Solutions, Inc.