AS33490 — COMCAST-33490

AS33490 announces 130 IPv4 prefixes covering 852,736 addresses and 61 IPv6 prefixes.

About this network

COMCAST-33490 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 such as c-76-115-64-0.hsd1.or.comcast.net and netnames like OREGON-23 and BEAVERTON-CPE-11.
• With 851712 IPv4 addresses announced across 126 prefixes and 67 observed neighbours, the high address-to-neighbour ratio indicates a large-scale access network rather than a transit provider.

Notable

• Registrants vary slightly across prefixes, including Comcast Cable Communications, Inc., Comcast Cable Communications, LLC, Comcast Cable Communications, IP Services, and Comcast Cable Communications Holdings, Inc, reflecting internal corporate restructuring and historical acquisitions.
• The inventory consists of numerous /16, /17, and /18 blocks concentrated in the Pacific Northwest, specifically Oregon and Washington, consistent with Comcast's regional cable infrastructure footprint.

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

Announced prefixes

• 23.24.240.0/20
• 24.124.129.0/24
• 50.76.96.0/20
• 50.78.176.0/20
• 50.188.176.0/20
• 50.190.32.0/19
• 50.191.128.0/19
• 50.193.208.0/20
• 50.196.0.0/19
• 50.198.160.0/20
• 50.204.255.0/24
• 50.206.113.0/24
• 50.209.32.0/19
• 50.214.64.0/20
• 50.228.52.0/24
• 50.228.76.0/24
• 50.232.199.0/24
• 50.236.220.0/24
• 50.238.126.0/23
• 50.240.16.0/20
• 50.246.224.0/19
• 50.252.0.0/19
• 50.255.96.0/20
• 67.160.128.0/18
• 67.166.80.0/20
• 67.168.192.0/18
• 67.169.192.0/19
• 67.170.128.0/18
• 67.171.128.0/17
• 67.189.0.0/17
• 68.85.146.0/24
• 68.85.148.0/22
• 68.85.242.0/23
• 68.86.8.0/24
• 68.87.69.0/24
• 68.87.216.0/22
• 69.139.155.0/24
• 69.241.17.0/24
• 69.241.58.0/23
• 69.241.76.0/24
• 69.252.64.0/24
• 69.252.228.0/23
• 69.252.236.0/23
• 70.88.170.0/23
• 70.89.176.0/20
• 70.90.128.0/21
• 70.91.184.0/22
• 70.91.222.0/24
• 71.25.144.0/20
• 71.56.128.0/19
• 71.59.128.0/17
• 71.63.128.0/17
• 71.193.128.0/17
• 71.236.128.0/17
• 71.237.128.0/17
• 71.238.0.0/17
• 72.19.22.0/24
• 74.49.229.0/24
• 74.49.241.0/24
• 74.49.245.0/24
• 74.49.247.0/24
• 74.50.14.0/23
• 74.92.160.0/20
• 74.93.184.0/21
• 74.95.32.0/20
• 75.145.64.0/20
• 75.148.48.0/21
• 75.148.80.0/20
• 75.150.32.0/20
• 76.27.192.0/18
• 76.96.2.0/23
• 76.96.40.0/23
• 76.96.45.0/24
• 76.96.94.0/23
• 76.96.112.0/23
• 76.105.128.0/17
• 76.115.0.0/16
• 76.138.128.0/17
• 76.144.0.0/16
• 96.65.192.0/19
• 96.71.160.0/19
• 96.76.96.0/19
• 96.79.96.0/19
• 96.85.128.0/20
• 96.89.96.0/19
• 96.95.128.0/19
• 96.96.208.0/21
• 96.97.232.0/21
• 96.108.64.0/23
• 96.108.80.0/24
• 96.109.9.0/24
• 96.109.10.0/23
• 96.109.12.0/22
• 96.109.156.0/23
• 96.216.60.0/24
• 96.216.100.0/23
• 96.216.124.0/23
• 96.216.158.0/23
• 96.217.40.0/22
• 96.217.96.0/22

and 91 more.

Upstream networks

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

Downstream networks

• AS40298 General Pacific, Inc.
• AS393408 University of Portland
• AS13541 Siemens Industry Software Inc.
• AS11995 Oregon Health & Science University
• AS15045 KITTELSON AND ASSOCIATES, INC.
• AS21718 Northwest Natural Gas
• AS1823 Hannah Motor Company
• AS11396 Williams Information Technology LLC
• AS40227 IP Networked Services Inc.
• AS36612 Clark County WA
• AS13888 Bear Creek Operations Inc
• AS31128 Apple Distribution International Ltd.
• AS53752 US Digital
• AS36564 Siemens Industry Software Inc.
• AS400517 Linespeed
• AS7441 Omega Datacenters, LLC
• AS23431 Adventist
• AS23182 THE GREENBRIER COMPANIES, INC.
• AS7406 B&R Auto
• AS25652 InRoads Federal Credit Union
• AS36040 Google LLC
• AS53531 Seneca Sawmill Company
• AS399540 AbSci Corporation
• AS18661 Dunn Carney Allen Higgins & Tongue, LLP
• AS394132 Cascade Microtech, Inc.

Adjacent networks

• AS7922 Comcast Cable Communications, LLC
• AS3356 Level 3 Parent, LLC
• AS40298 General Pacific, Inc.
• AS393408 University of Portland
• AS13541 Siemens Industry Software Inc.
• AS400517 Linespeed
• AS11995 Oregon Health & Science University
• AS15045 KITTELSON AND ASSOCIATES, INC.
• AS21718 Northwest Natural Gas
• AS1823 Hannah Motor Company
• AS11396 Williams Information Technology LLC
• AS40227 IP Networked Services Inc.
• AS36612 Clark County WA
• AS13888 Bear Creek Operations Inc
• AS31128 Apple Distribution International Ltd.
• AS53752 US Digital
• AS36564 Siemens Industry Software Inc.
• AS7441 Omega Datacenters, LLC
• AS23431 Adventist
• AS23182 THE GREENBRIER COMPANIES, INC.
• AS25652 InRoads Federal Credit Union
• AS7406 B&R Auto
• AS36040 Google LLC
• AS53531 Seneca Sawmill Company
• AS399540 AbSci Corporation