ASN Lookup Tool

Charter Communications, Inc. spectrum.com US US 121 Routes

AS Data

AS12271

AS12271 – Charter Communications, Inc.

AS Number 12271
AS Name TWC-12271-NYC
Organization Charter Communications, Inc. (cc-3517)
Country US
Website spectrum.com
Number of IPv4 Routes 111
Number of IPv6 Routes 8
ASN type ISP
Registry ARIN
Date Allocated 2000-06-09

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IP Ranges

Route # IPs
198.151.202.0/24 256
69.203.0.0/17 32768
67.251.128.0/19 8192
24.90.0.0/16 65536
69.204.224.0/19 8192
24.97.123.0/24 256
2602:107:6300::/40 ~309×10²⁴
24.29.96.0/19 8192
98.0.128.0/17 32768
72.225.64.0/18 16384
50.75.192.0/18 16384
172.254.0.0/16 65536
67.251.192.0/18 16384
149.89.0.0/16 65536
2602:107:6310::/44 ~19×10²⁴
74.65.192.0/18 16384
69.200.240.0/21 2048
72.231.0.0/17 32768
168.148.128.0/19 8192
72.43.128.0/18 16384
150.221.96.0/19 8192
142.255.0.0/17 32768
66.65.128.0/18 16384
67.245.0.0/16 65536
68.165.184.0/21 2048
208.105.0.0/18 16384
208.105.64.0/19 8192
74.68.0.0/18 16384
24.168.0.0/17 32768
67.247.96.0/19 8192
68.174.0.0/16 65536
184.74.128.0/17 32768
69.203.128.0/19 8192
66.108.0.0/16 65536
69.200.224.0/19 8192
192.131.40.0/22 1024
69.206.0.0/16 65536
2602:107:e400::/40 ~309×10²⁴
142.105.0.0/17 32768
24.168.128.0/19 8192
68.172.208.0/20 4096
69.193.192.0/19 8192
204.210.128.0/19 8192
74.66.0.0/16 65536
24.30.224.0/20 4096
98.12.0.0/16 65536
98.7.0.0/17 32768
66.65.0.0/17 32768
69.193.128.0/18 16384
65.86.104.0/21 2048
67.247.0.0/18 16384
150.224.177.0/24 256
50.74.0.0/16 65536
24.39.104.0/21 2048
69.202.128.0/17 32768
67.243.0.0/16 65536
74.0.136.0/21 2048
24.161.0.0/17 32768
2600:6c7f:9360::/44 ~19×10²⁴
2603:90be::/32 ~79×10²⁷

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:       12271
ASName:         TWC-12271-NYC
ASHandle:       AS12271
RegDate:        2000-06-09
Updated:        2018-11-27
Ref:            https://rdap.arin.net/registry/autnum/12271



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


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

OrgTechHandle: IPADD1-ARIN
OrgTechName:   IPAddressing
OrgTechPhone:  +1-866-248-7662 
OrgTechEmail:  PublicIPAddressing@charter.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPADD1-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
AS23325 Magnitude Capital, LLC US
AS53693 Ralph Appelbaum Associates, Inc. US
AS22252 The City of New York US
AS395359 InTouch Health US
AS14460 Horizon Media LLC US
AS14478 Recurse Center US
AS23010 Fried, Frank, Harris, Shriver & Jacobson LLP US
AS30012 Universal Music Group, INC. US
AS54113 Fastly, Inc. US
AS401827 UNFCU US
AS40362 Chapin School US
AS18694 Sappi Fine Paper North America US
AS40170 Intermetro Communications, Inc. US
AS19796 Shubert Organization, Inc. US
AS62566 Starbucks Coffee Company US
AS393753 The Brooklyn Hospital Center US
AS6292 MTAPD US
AS395095 Orange Regional Medical Center US
AS30339 Davis & Gilbert LLP US
AS20252 Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University US
AS23097 COHEN & STEERS CAPITAL MGMT., INC. US
AS19794 The Cementworks LLC US
AS400392 Empire Resorts, Inc. US
AS6453 TATA COMMUNICATIONS AMERICA INC US
AS16770 Astoria Generating Company, L.P. US
AS5091 Stripe, Inc. US
AS55123 Brilliant Jewelers/MJJ Inc. US
AS26738 Deerfield Partners, L.P. US
AS25816 Touro College US
AS33428 The New York Historical Society US
AS13975 NYCPM US
AS402494 Bartlett Dairy, Inc. US
AS393562 Mobilitie, LLC US
AS7843 Charter Communications Inc US
AS22303 State University of New York at New Paltz US
AS393569 9/11 MEMORIAL US
AS18564 St. John's University, New York US
AS36100 MTC Broadband, Inc. US
AS25669 MARKERTEK VIDEO SUPPLY US
AS31869 LL Bean US
AS14465 HITN US
AS32730 LG CNS America Inc. US
AS33010 The Interchurch Center US
AS395060 Macmillan Publishers Inc US
AS402355 Visentry US
AS397595 MTAPD US
AS400508 The Juilliard School US
AS54226 SUNY College of Optometry US
AS27185 Danbury Hospital ITG US
AS25891 School Of Visual Arts, Inc. US
AS46765 Liberum Capital Inc. US
AS39943 St. Francis College US

Upstreams

AS Number Description Country
AS6453 TATA COMMUNICATIONS AMERICA INC US
AS7843 Charter Communications Inc US

Downstreams

AS Number Description Country
AS54201 We Link Networks LLC US
AS23325 Magnitude Capital, LLC US
AS53693 Ralph Appelbaum Associates, Inc. US
AS22252 The City of New York US
AS395359 InTouch Health US
AS14478 Recurse Center US
AS23010 Fried, Frank, Harris, Shriver & Jacobson LLP US
AS30012 Universal Music Group, INC. US
AS54113 Fastly, Inc. US
AS401827 UNFCU US

Contacts

Email Contacts

PublicIPAddressing@charter.com

Abuse Contacts

abuse@charter.net

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Frequently Asked Questions

ASN AS12271 is an Autonomous System Number used to identify a network for BGP internet routing.
AS12271 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.