AS11427 Charter Communications Inc

United States Charter-Communications-TWC-11427-TEXAS ARIN 404 IPv4 prefixes 17 IPv6 prefixes

IPv4 addresses

5,823,744

IPv6 /48 networks

3,539,472

RPKI

412 valid1 invalid8 no ROA

Peers and downstreams

128

Holder

AS name: Charter-Communications-TWC-11427-TEXAS
Description: Charter-Communications-TWC-11427-TEXAS
Organisation: Charter Communications Inc
Abuse contact: Not published
Assigned: 2000-06-08
Registered: 2000-06-09
Record last changed: 2018-11-27 16:38 UTC

104.129.248.0/24 104.224.79.0/24 108.167.0.0/18 108.167.64.0/20 108.178.64.0/18 134.202.184.0/21 139.177.152.0/24 140.99.209.0/24 140.99.45.0/24 144.168.24.0/21 144.172.8.0/22 149.18.241.0/24 149.18.253.0/24 150.220.0.0/16 150.221.128.0/17 150.221.80.0/20 150.224.228.0/23 150.224.234.0/24 154.194.16.0/21 154.194.196.0/22 154.194.216.0/21 154.194.232.0/22 154.194.24.0/22 154.194.244.0/22 154.194.8.0/22 154.198.128.0/19 154.202.144.0/20 154.202.192.0/18 154.213.168.0/21 154.220.128.0/18 154.82.26.0/23 154.82.28.0/22 154.85.0.0/23 154.85.100.0/22 154.85.124.0/22 154.88.32.0/22 154.88.44.0/22 154.88.48.0/22 154.88.60.0/22 154.90.160.0/21 154.90.168.0/22 154.90.176.0/21 154.90.184.0/22 154.90.192.0/19 154.94.128.0/18 154.94.16.0/20 154.94.240.0/20 154.94.8.0/22 156.229.180.0/22 156.229.184.0/21 156.229.192.0/19 156.229.228.0/22 156.229.232.0/22 156.229.240.0/22 156.233.112.0/22 156.233.12.0/22 156.233.128.0/20 156.233.152.0/21 156.233.16.0/21 156.233.160.0/19 156.233.196.0/22 156.233.200.0/22 156.233.24.0/22 156.233.36.0/22 156.233.4.0/22 156.233.76.0/22 156.233.84.0/22 156.238.172.0/22 156.238.176.0/22 156.238.184.0/22 156.239.136.0/22 156.241.16.0/20 156.241.32.0/21 156.241.44.0/22 156.241.48.0/20 156.241.8.0/21 156.242.108.0/22 156.242.112.0/21 156.242.84.0/22 156.242.96.0/22 156.243.116.0/22 156.243.120.0/21 156.243.140.0/22 156.243.152.0/22 156.243.160.0/20 156.243.176.0/21 156.243.184.0/22 156.243.208.0/21 156.243.236.0/22 156.243.40.0/21 156.243.88.0/21 156.244.132.0/22 156.244.136.0/21 156.244.192.0/21 156.244.200.0/22 156.244.212.0/22 156.244.216.0/21 156.248.112.0/20 156.248.16.0/22 156.248.32.0/19 156.248.88.0/22 156.248.96.0/21 156.249.104.0/21 156.249.116.0/22 156.249.68.0/22 156.249.72.0/21 156.249.84.0/22 156.249.88.0/21 159.56.4.0/22 162.253.177.0/24 168.148.160.0/19 168.148.232.0/21 168.151.16.0/24 168.151.6.0/24 172.87.128.0/18 173.172.0.0/14 173.197.0.0/18 173.198.128.0/19 184.92.0.0/16 184.93.0.0/17 184.93.128.0/19 192.112.244.0/24 192.136.192.0/18 192.154.176.0/20 192.198.240.0/20 192.61.112.0/20 192.63.0.0/16 198.49.140.0/24 205.201.160.0/20 207.145.0.0/22 207.145.104.0/21 207.145.144.0/21 207.145.176.0/21 207.145.240.0/21 207.145.44.0/22 207.145.52.0/22 207.145.56.0/21 207.168.28.0/22 207.168.48.0/22 207.168.56.0/22 207.168.80.0/21 207.168.92.0/22 216.122.165.0/24 216.132.176.0/22 216.132.216.0/22 216.224.120.0/24 24.106.52.0/22 24.106.8.0/21 24.123.96.0/20 24.153.128.0/17 24.160.0.0/19 24.160.128.0/19 24.162.0.0/17 24.162.128.0/18 24.162.192.0/19 24.164.192.0/19 24.165.224.0/19 24.166.164.0/22 24.166.168.0/21 24.166.176.0/20 24.167.0.0/17 24.169.240.0/20 24.169.240.0/22 24.170.0.0/17 24.173.0.0/18 24.173.176.0/20 24.173.192.0/18 24.173.64.0/19 24.173.96.0/20 24.174.42.0/23 24.175.0.0/17 24.175.160.0/19 24.175.192.0/18 24.208.100.0/22 24.227.128.0/17 24.242.0.0/15 24.26.192.0/18 24.27.0.0/17 24.28.0.0/17 24.28.128.0/18 24.31.224.0/19 24.31.32.0/19 24.55.0.0/18 24.73.240.0/20 24.92.96.0/19 24.93.32.0/19 24.94.160.0/19 35.146.0.0/15 45.198.188.0/22 45.202.116.0/23 45.202.120.0/22 45.202.92.0/22 45.202.96.0/22 45.203.192.0/22 45.203.240.0/22 45.203.252.0/22 45.205.156.0/22 45.205.160.0/23 45.205.170.0/23 45.205.76.0/22 45.205.88.0/21 45.207.0.0/23 45.207.164.0/23 45.207.170.0/23 45.207.174.0/23 45.207.36.0/22 45.207.42.0/23 45.207.48.0/21 47.234.128.0/17 47.3.128.0/17 50.84.0.0/16 64.183.176.0/20 64.183.192.0/18 64.189.156.0/24 64.86.93.0/24 65.185.247.0/24 65.26.0.0/19 65.26.128.0/20 65.26.32.0/20 65.26.48.0/21 65.26.72.0/21 65.26.80.0/20 65.26.96.0/19 65.28.0.0/19 65.28.64.0/18 65.31.192.0/19 65.84.0.0/20 65.84.112.0/20 65.84.128.0/20 65.84.144.0/20 65.84.16.0/20 65.84.160.0/20 65.84.176.0/20 65.84.192.0/20 65.84.208.0/20 65.84.224.0/20 65.84.240.0/20 65.84.32.0/20 65.84.48.0/20 65.84.64.0/20 65.84.80.0/20 65.84.96.0/20 65.85.0.0/23 65.85.128.0/20 65.85.144.0/20 65.85.16.0/20 65.85.160.0/20 65.85.176.0/20 65.85.192.0/20 65.85.208.0/20 65.85.224.0/20 65.85.240.0/20 65.85.3.0/24 65.85.32.0/19 65.85.4.0/22 65.85.64.0/18 65.85.8.0/21 66.142.245.0/24 66.167.128.0/21 66.167.92.0/22 66.25.0.0/18 66.25.128.0/17 66.25.64.0/19 66.37.160.0/19 66.68.0.0/15 66.75.218.0/23 66.92.144.0/21 67.10.0.0/15 67.102.0.0/22 67.48.0.0/20 67.48.128.0/18 67.48.16.0/20 67.48.192.0/19 67.48.32.0/19 67.48.64.0/19 67.48.80.0/20 67.52.18.0/23 67.52.216.0/23 67.52.222.0/23 67.52.224.0/20 67.52.248.0/22 67.52.252.0/23 67.52.254.0/24 67.53.160.0/22 67.53.24.0/23 67.53.64.0/22 67.53.86.0/23 67.53.92.0/23 67.78.32.0/19 67.78.64.0/18 67.79.0.0/17 67.79.192.0/18 67.79.90.0/24 68.165.64.0/19 68.182.204.0/22 68.182.212.0/22 68.201.0.0/19 68.201.128.0/17 68.201.32.0/19 68.201.64.0/18 68.203.0.0/16 68.206.0.0/16 68.207.0.0/18 68.207.64.0/20 68.207.96.0/19 69.23.112.0/20 69.23.128.0/19 69.23.160.0/19 69.33.116.0/23 69.76.128.0/17 70.112.0.0/14 70.115.80.0/21 70.116.0.0/15 70.117.32.0/19 70.118.0.0/17 70.118.128.0/18 70.118.192.0/18 70.119.0.0/16 70.120.0.0/16 70.120.0.0/17 70.120.128.0/17 70.121.0.0/18 70.121.128.0/17 70.121.64.0/18 70.122.0.0/15 70.124.0.0/16 70.125.112.0/20 70.125.123.0/24 70.125.128.0/17 70.125.96.0/20 70.92.32.0/20 70.92.48.0/20 70.94.0.0/17 70.94.128.0/18 70.94.192.0/19 71.40.0.0/17 71.40.192.0/18 71.41.0.0/19 71.41.128.0/18 71.41.192.0/20 71.41.224.0/19 71.42.128.0/19 71.42.176.0/20 71.42.192.0/18 71.42.64.0/18 71.78.0.0/16 72.128.0.0/18 72.128.128.0/19 72.129.160.0/19 72.129.224.0/19 72.131.192.0/18 72.133.224.0/20 72.133.64.0/18 72.135.0.0/19 72.135.96.0/20 72.176.0.0/13 72.183.75.0/24 72.190.0.0/15 72.245.0.0/18 72.245.160.0/21 72.245.176.0/21 72.245.88.0/21 72.245.96.0/19 74.2.28.0/22 74.2.64.0/19 74.62.112.0/20 74.62.128.0/20 74.62.160.0/21 74.62.64.0/22 74.62.76.0/22 74.87.104.0/21 74.87.160.0/20 74.87.176.0/21 74.87.184.0/22 74.87.192.0/22 75.81.0.0/18 75.81.128.0/19 75.81.160.0/20 75.81.64.0/18 75.87.0.0/17 75.87.128.0/18 76.182.192.0/18 76.183.0.0/16 76.184.0.0/14 76.58.32.0/21 76.58.58.0/23 76.79.0.0/18 76.84.0.0/16 76.85.0.0/17 76.85.128.0/18 76.85.192.0/19 76.92.112.0/20 76.92.128.0/17 97.105.0.0/16 97.77.0.0/16 97.79.128.0/17 97.98.0.0/15 98.100.96.0/19 98.120.108.0/24 98.120.111.0/24 98.156.0.0/16 98.156.40.0/22 98.157.160.0/20 98.6.0.0/16

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AS11394	City of Richardson CITYOFRICHARDSON-AS
AS11755	Andrews Distributing Company of North Texas, LLC ANDREWS-ASN01
AS11865	Epe-Asn-Bgp-1 EPE-ASN-BGP-1
AS13380	Zix Corporation ASN-CUST
AS13554	Tenaska Power Services, Co. TPS-TX-AS
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AS14416	Internet de Nuevo Laredo, S.A de C.V. BRAVO-NET
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AS16037	AB Tetra Pak TETRAPAK-AS
AS16394	Killeen ISD KILLEEN-INDEPENDENT-SCHOOL-DISTRICT
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AS18645	UMHB UMHB-BELTON
AS18937	Nmc NMC
AS18961	McLane Company, Inc. MCLANECO
AS19115	Charter Communications LLC CHARTER-19115-DC
AS19157	Charter Communications LLC CHARTER-19157-DC
AS19681	Networkitects, Inc. DIGGIO
AS19773	Motorola, Inc. MOTOROLA-SOLUTIONS
AS19945	Granbury Independent School District GRANBURYISD
AS20231	Charter Communications Inc TWC-20231-NE-KS-C3
AS20251	SolarWinds North America, Inc. SOLARWINDSAUSTIN
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AS22444	United States Cold Storage Inc. USCOLD
AS22718	Brownsville Public Utilities Board BROWNSVILLE-PUBLIC-UTILITIES-BOARD
AS22945	Parkland Health & Hospital System AS-PHHS
AS23302	Stc STC
AS23371	CAE USA, Inc CAEUS-AS
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AS26289	Southside Bancshares, Inc. SOUTHSIDE-BANCSHARES-INC
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AS30030	Wal-Mart Stores, Inc. WALMART-GUEST-TENANT
AS30175	EPICOR
AS32520	Diebold Nixdorf, Incorporated DN-OH1
AS33589	City of Southlake CITYOFSOUTHLAKE
AS33683	University of the Incarnate Word UIWTX
AS35858	ATMOS ENERGY CORP ATMOS-ENERGY
AS36010	Randolph-Brooks Federal Credit Union RBSTARNET1
AS36097	Nugget Enterprises, Inc. NUGGET-SAN
AS36339	SMART CITY NETWORKS, LIMITED PARTNERSHIP SMART-CITY-SACC
AS36456	Velocity Credit Union VELOCITYCU
AS36523	Farm Credit Bank of Texas FCBT-AS
AS36748	St. Edwards University STEDWARDS-ASN1
AS38191	Infosys Technologies Ltd INFOSYS-AS
AS40330	Lone Star National Bank LSNB
AS40615	University Health System BCHD-AS-1
AS40636	ROCKWELL AUTOMATION Inc. PLEXUSSYSTEMS-US1
AS40656	Communications Etc., Inc. COMETC1
AS40842	American National Bank ANB-WF
AS40852	Security Service Federal Credit Union SSFCU-AS-4
AS46197	Discovery Information Technologies, Inc. DISCOVERYIT77627
AS46511	UNIVERSAL HEALTH SERVICES MMC-026
AS46549	Gvo GVO
AS46884	ServiceLink Holdings, LLC SERVICELINK-2
AS47050	Texas A&M International University TAMIU-ASN
AS53293	Samsung Austin Semiconductor LLC BGP-SAS-01
AS53368	Austin Energy Corporation AUSTIN-ENERGY-01
AS53396	STRAC
AS53533	Entravision Communications Corporation ENTRA-3
AS53629	THE CITY NATIONAL BANK OF TAYLOR CNBT-AS
AS53759	Visual Net Design LC VND
AS54089	Operational Technologies Corporation OPTECH
AS54201	We Link Networks LLC WEWORK-MANAGEMENT-LLC
AS54222	City of Cedar Park CITY-OF-CEDAR-PARK
AS54426	Tosa TOSA
AS54710	IN-N-OUT BURGERS INNOUT
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AS63148	Quick Technologies Inc. QTI
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AS63402	Ucdp-Orlcorp UCDP-ORLCORP
AS393352	CITY OF LAREDO CITY-OF-LAREDO
AS393359	Security Service Federal Credit Union SSFCU-AS-2
AS393533	SECURITY WIRELESS & TECHNOLOGY L.L.C. SECWITECH-NETWORKS
AS393638	City of Mesquite Texas MESQ-TX
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Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade C · 64/100

partly	Prefixes covered by valid ROAs 412 of 421 announced prefixes are RPKI valid, 8 have no ROA.	24/25
fail	No RPKI invalid announcements 1 announced prefix is RPKI invalid and dropped by networks that validate.	0/10
pass	Announces IPv6 17 IPv6 prefixes.	15/15
pass	More than one upstream 2 upstreams seen in BGP.	10/10
partly	Working abuse contact abuse@charter.net is published, but charter.net has no mail server (MX).	5/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
pass	No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger.	10/10
fail	Registry record maintained Last changed 2018-11-27.	0/5

Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.

Show this on your website

HTML

<a href="https://ip-fd.net/asn/11427"><img src="https://ip-fd.net/badge/asn/11427/health.svg" alt="AS11427 network health on IP-FD.net"></a>

Markdown

[![AS11427 network health](https://ip-fd.net/badge/asn/11427/health.svg)](https://ip-fd.net/asn/11427)

Use rpki.svg instead of health.svg for the RPKI badge.

Routing changes

Last 30 days

2026-10-04 09:23 UTC	Neighbour gone	AS395737	downstream
2026-10-04 09:23 UTC	Neighbour gone	AS395483	downstream
2026-10-04 09:23 UTC	Neighbour gone	AS55173	downstream
2026-10-04 09:23 UTC	Neighbour gone	AS55103	downstream
2026-10-04 09:23 UTC	Neighbour gone	AS54006	downstream
2026-10-04 09:23 UTC	Neighbour gone	AS40910	downstream
2026-10-04 09:23 UTC	Neighbour gone	AS30270	downstream
2026-10-04 09:23 UTC	Neighbour gone	AS18674	downstream
2026-10-04 09:23 UTC	Neighbour gone	AS18537	downstream
2026-10-04 09:23 UTC	Neighbour gone	AS17157	downstream
2026-10-04 09:23 UTC	Neighbour gone	AS14997	downstream
2026-10-04 09:23 UTC	Neighbour gone	AS14617	downstream
2026-10-04 09:23 UTC	Neighbour gone	AS11553	downstream
2026-10-04 09:23 UTC	New neighbour	AS400494	downstream
2026-10-04 09:23 UTC	New neighbour	AS2003	downstream
2026-10-04 09:23 UTC	New neighbour	AS13939	downstream
2026-10-04 09:23 UTC	New neighbour	AS11394	downstream
2026-10-04 09:23 UTC	Relationship changed	AS6453	upstream to peer

WHOIS

aut-num:        AS11427
as-name:        TWC-11427-TEXAS
handle:         AS11427
registrant:     CC-3517 (Charter Communications Inc)
administrative,technical:IPADD1-ARIN (IPAddressing) <PublicIPAddressing@charter.com>
abuse:          ABUSE19-ARIN (Abuse) <abuse@charter.net>
last changed:   2018-11-27T11:38:29-05:00
registration:   2000-06-09T00:00:00-04:00
source:         ARIN (RDAP)

Routing data

Updated just now

Registry record

Fetched just now from ARIN RDAP

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/11427

const res = await fetch('https://ip-fd.net/api/v1/asn/11427', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/11427', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/11427');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/11427", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Works without a key at a lower rate. Get a free key.

AS7843	Charter Communications Inc TWC-7843-BB
AS20115	Charter Communications LLC CHARTER-20115

AS6453	TATA COMMUNICATIONS (AMERICA) INC AS6453
AS27325	zColo DATABANK-ZCOLO