ASN Lookup Tool

Charter Communications Inc charter.com US US 618 Routes

AS Data

AS20001

AS20001 – Charter Communications Inc

AS Number 20001
AS Name TWC-20001-PACWEST
Organization Charter Communications Inc(cc-3517)
Country US
Website charter.com
Number of IPv4 Routes 582
Number of IPv6 Routes 36
ASN type ISP
Registry ARIN
Date Allocated 2001-03-13

ASN Intelligence API for production workflows

Use ASN data for AS20001 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route # IPs
65.185.254.0/24 256
64.105.74.0/23 512
173.196.0.0/16 65536
130.254.113.0/24 256
89.23.81.0/24 256
66.17.174.0/23 512
130.44.200.0/24 256
64.105.133.0/24 256
74.87.134.0/24 256
198.1.214.0/24 256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       20001
ASName:         TWC-20001-PACWEST
ASHandle:       AS20001
RegDate:        2001-03-13
Updated:        2018-11-27    
Ref:            https://rdap.arin.net/registry/autnum/20001



OrgName:        Charter Communications Inc
OrgId:          CC-3517
Address:        6175 S. Willow Dr
City:           Greenwood Village
StateProv:      CO
PostalCode:     80111
Country:        US
RegDate:        2018-10-10
Updated:        2022-09-14
Comment:        Legacy Time Warner Cable IP Assets
Ref:            https://rdap.arin.net/registry/entity/CC-3517


OrgTechHandle: IPADD1-ARIN
OrgTechName:   IPAddressing
OrgTechPhone:  +1-866-248-7662 
OrgTechEmail:  PublicIPAddressing@charter.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPADD1-ARIN

OrgAbuseHandle: ABUSE19-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-877-777-2263 
OrgAbuseEmail:  abuse@charter.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE19-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number Description Country
AS54201 We Link Networks LLC US
AS8188 Bloomberg Financial Markets Limited Partnership US
AS20115 Charter Communications LLC US
AS19398 Tenet HealthSystem Medical, Inc. US
AS395102 Yuma Regional Medical Center US
AS23527 Christ Catholic Cathedral Corporation US
AS23425 IANA - Autonomous System Number US
AS19776 Mid-Pacific Institute US
AS396299 The IMAGINE Group, LLC US
AS21705 Houdini Inc. US

Upstreams

AS Number Description Country
AS20115 Charter Communications LLC US
AS6453 TATA COMMUNICATIONS AMERICA INC US
AS40300 DR Fortress, LLC US
AS7843 Charter Communications Inc US
AS701 Verizon Business US

Downstreams

AS Number Description Country
AS54201 We Link Networks LLC US
AS8188 Bloomberg Financial Markets Limited Partnership US
AS19398 Tenet HealthSystem Medical, Inc. US
AS395102 Yuma Regional Medical Center US
AS23527 Christ Catholic Cathedral Corporation US
AS396299 The IMAGINE Group, LLC US
AS21705 Houdini Inc. US
AS27511 Punahou School US
AS19913 W PNP, Inc. US
AS393971 Martin Luther King Jr., Healthcare Corporation US

Contacts

Email Contacts

PublicIPAddressing@charter.com

Abuse Contacts

abuse@charter.net

Ready to get started?Get Started with IP Intelligence API Today

Get Started
CTA Illustration

Frequently Asked Questions

ASN AS20001 is an Autonomous System Number used to identify a network for BGP internet routing.
AS20001 is listed under Charter Communications Inc.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.