AS20001 — TWC-20001-PACWEST

Network type: residential

AS20001 announces 554 IPv4 prefixes covering 7,215,616 addresses and 48 IPv6 prefixes.

About this network

AS20001 is a Charter Communications network carrying legacy Time Warner Cable / Road Runner residential broadband, now marketed as Spectrum.

What it's used for

• Cable (DOCSIS) and fibre home internet for US households in former Time Warner Cable footprint markets.

Notable

• A large consumer "eyeball" network: addresses here are home connections, commonly behind carrier-grade NAT, not servers.
• Charter runs several ASNs that all roll up to the Spectrum network; this one originated in the Time Warner Cable / Road Runner side of the 2016 merger.

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

Announced prefixes

• 23.94.90.0/24
• 23.94.106.0/24
• 23.94.109.0/24
• 23.94.135.0/24
• 23.142.228.0/24
• 23.240.0.0/14
• 24.24.128.0/17
• 24.25.192.0/18
• 24.30.128.0/18
• 24.43.0.0/18
• 24.43.64.0/20
• 24.43.80.0/21
• 24.43.88.0/22
• 24.43.92.0/23
• 24.43.94.0/24
• 24.43.96.0/19
• 24.43.128.0/19
• 24.43.160.0/20
• 24.43.176.0/21
• 24.43.192.0/18
• 24.94.0.0/19
• 24.94.64.0/19
• 24.123.116.0/23
• 24.123.120.0/24
• 24.160.32.0/21
• 24.160.48.0/20
• 24.165.0.0/18
• 24.165.64.0/19
• 24.199.0.0/20
• 24.199.16.0/21
• 24.199.24.0/22
• 24.199.30.0/23
• 24.199.32.0/22
• 24.199.38.0/23
• 24.199.40.0/21
• 24.199.48.0/20
• 35.132.40.0/21
• 40.183.128.0/21
• 45.40.123.0/24
• 45.48.0.0/14
• 45.59.192.0/18
• 45.148.135.0/24
• 47.231.64.0/20
• 47.231.128.0/22
• 47.231.144.0/22
• 50.113.0.0/16
• 63.243.199.0/24
• 64.105.74.0/23
• 64.105.98.0/23
• 64.105.109.0/24
• 64.105.110.0/23
• 64.105.125.0/24
• 64.105.126.0/23
• 64.105.128.0/22
• 64.105.133.0/24
• 64.105.134.0/23
• 64.105.154.0/23
• 64.105.160.0/23
• 64.105.164.0/22
• 64.105.168.0/22
• 64.105.174.0/23
• 64.105.176.0/23
• 64.105.180.0/22
• 64.105.184.0/22
• 64.105.190.0/23
• 64.105.192.0/22
• 64.105.200.0/23
• 64.105.206.0/23
• 64.105.248.0/22
• 64.105.252.0/23
• 64.183.0.0/22
• 64.183.4.0/24
• 64.183.6.0/23
• 64.183.8.0/21
• 64.183.16.0/20
• 64.183.32.0/21
• 64.183.40.0/23
• 64.183.44.0/22
• 64.183.48.0/20
• 64.183.64.0/18
• 64.183.152.0/24
• 64.183.156.0/23
• 64.183.168.0/21
• 65.28.212.0/24
• 65.185.254.0/23
• 66.8.128.0/17
• 66.17.129.0/24
• 66.17.172.0/22
• 66.17.184.0/24
• 66.27.32.0/19
• 66.27.64.0/18
• 66.27.128.0/17
• 66.53.160.0/22
• 66.74.0.0/16
• 66.75.0.0/17
• 66.75.128.0/18
• 66.75.192.0/20
• 66.75.208.0/21
• 66.75.216.0/23
• 66.75.220.0/22

and 502 more.

Upstream networks

• AS7843 Charter Communications Inc
• AS20115 Charter Communications LLC
• AS6939 Hurricane Electric LLC
• AS701 Verizon Business
• AS6453 TATA COMMUNICATIONS (AMERICA) INC

Downstream networks

• AS4179 City of Los Angeles
• AS36315 Servpac Inc.
• AS5033 Key Information Systems, Inc.
• AS11188 LOS ANGELES COUNTY - INTERNAL SERVICESDIVISION
• AS46838 Port of Long Beach
• AS19011 Iteris, Inc.
• AS53527 Los Angeles Sheriff's Department
• AS399269 City of Torrance
• AS11756 Children's Hospital Los Angeles
• AS23000 Wescom Credit Union
• AS54159 Xetra Networks Inc.
• AS32358 County of Ventura
• AS54576 Hoag Memorial Hospital Presbyterian
• AS33614 City of San Diego
• AS10558 Biola University, Inc.
• AS19115 Charter Communications LLC
• AS36101 Azusa Pacific University
• AS46233 Eisenhower Medical Center
• AS62819 Cetra Group Inc.
• AS394762 Desert Sands Unified School District
• AS19739 County of San Bernardino
• AS3456 Charter Communications Inc
• AS30012 Universal Music Group, INC.
• AS25671 Wholesale Air-time Inc.
• AS21705 Houdini Inc.

Adjacent networks

• AS7843 Charter Communications Inc
• AS20115 Charter Communications LLC
• AS4179 City of Los Angeles
• AS36315 Servpac Inc.
• AS5033 Key Information Systems, Inc.
• AS11188 LOS ANGELES COUNTY - INTERNAL SERVICESDIVISION
• AS46838 Port of Long Beach
• AS19011 Iteris, Inc.
• AS6939 Hurricane Electric LLC
• AS399269 City of Torrance
• AS53527 Los Angeles Sheriff's Department
• AS11756 Children's Hospital Los Angeles
• AS23000 Wescom Credit Union
• AS54159 Xetra Networks Inc.
• AS54576 Hoag Memorial Hospital Presbyterian
• AS32358 County of Ventura
• AS33614 City of San Diego
• AS10558 Biola University, Inc.
• AS19115 Charter Communications LLC
• AS36101 Azusa Pacific University
• AS46233 Eisenhower Medical Center
• AS62819 Cetra Group Inc.
• AS394762 Desert Sands Unified School District
• AS19739 County of San Bernardino
• AS3456 Charter Communications Inc