AS33659 Comcast Cable Communications, LLC

United States CMCS ARIN 49 IPv4 prefixes 126 IPv6 prefixes

IPv4 addresses

32,512

IPv6 /48 networks

126

RPKI

163 valid12 no ROA

Peers and downstreams

Holder

AS name: CMCS
Description: Comcast Cable Communications, LLC
Organisation: Comcast Cable Communications, LLC
Abuse contact: Not published
Assigned: 2005-02-15
Registered: 2005-02-16
Record last changed: 2021-01-25 20:24 UTC

AS34
AS1642	Colorcon Inc COLORCON
AS4985	PHILADELPHIA GAS WORKS PGWORKS
AS7328	The Children's Hospital of Philadelphia CHOP
AS11205	City of Philadelphia CITY-OF-PHILADELPHIA
AS11267	Peirce-Phelps, Inc. PEIRCE-PHELPS
AS11396	Williams Information Technology LLC TWC-ASN
AS11731	Weston Solutions, Inc. AS11731
AS11823	Lord, Abbett & Co. LORDABBETTCO
AS11826	Regional Information Sharing Systems RISS2
AS13839	P1p3r P1P3R
AS13913	Affiliated Monitoring, Inc. AFFILIATED
AS14529	Saint Joseph's University SJU-5600
AS14531	Lockheed Martin Corporation LM-ATL
AS14539	Vantage Labs LLC VLABS
AS15038	The Cambridge Incubator, LLC CAMBINC-1
AS15185	The Hibbert Group HIBBERT-EAST
AS15243	Widener University WIDENER
AS16758	Ricoh USA, Inc. RICOH USA
AS16958	Bucks County Intermediate Unit #22 BCIU-22
AS17003	Zoetis Inc. ZOETIS-INC
AS17035	NBCUniversal NBCUNI-17035
AS17317	Thing5, LLC THING5-NA
AS18583	Hatteras CPC HATTERASCPC
AS19216	Revlon Consumer Products Corp. REVLON-AS
AS19576	Eastern University EASTERN-AS-01
AS19677	NJTRANSIT
AS20390	Feith Systems and Software, Inc. FSS
AS21669	New Jersey State Library NJ-STATEWIDE-LIBRARY-NETWORK
AS21672	Customized Energy Solutions, Ltd. CES-HQPA-01
AS21897	Virtua Health VIRTUA-HEALTH
AS22641	Novo Nordisk Pharmaceutical, Inc. NNPI
AS22644	Thomas Jefferson University Hospitals, Inc. TJUH
AS22774
AS23062	J.W. Pepper & Son, Inc. JWPEPPER
AS26142	MANNINGTON MILLS MANNINGTON-SALEM
AS26450	CTDI CTDI-WC
AS26764	The Robert Wood Johnson Foundation RWJF-AS
AS26881	IPR International, LLC. DASTOR-LLC
AS30183	Hard Rock Hotel and Casino Atlantic City HRCAC-1
AS30302	ASPEN DENTAL MANAGEMENT, INC. ASPEN-DENTAL-INC
AS30597	A.M. Best Company AMBEST-ASN
AS32460	C.O.P.S. Monitoring COPS-MONITORING
AS32691	Corporation Service Company CSC
AS33261	Power Home Remodeling LLC PHRG
AS33523	Rowan University ROWANUNIVERSITY
AS33575	The Franklin Institute Science Museum TFINET-PUBLIC
AS33615	Envision Healthcare Holdings, Inc EVHC
AS36040	Google LLC YOUTUBE
AS36253	Dciunet DCIUNET
AS36350	The Devereux Foundation AS-DEVEREUX
AS36412	Drexel University DREXEL-ASN2
AS36533	Computer Solutions 698ALEX
AS40073	NBA Properties, Inc. NBA-ASN-USA
AS40159	Princeton Public Schools PRINCETON-REGIONAL-SCHOOLS
AS40177	The Institutes THE-INSTITUTES
AS46363	Holy Family University HOLYFAMILY
AS46424	Njta NJTA
AS53291	WSFS Bank WSFS-ASN
AS53373	Mathematica, Inc. MATH-INC
AS53434	SRI International SRI-INTERNATIONAL-PRINCETON
AS53532	The Board of Education of the Township of Cinnaminson CINNAMINSON-SCHOOLS
AS53750	Neumann University NEUMANN-UNIVERSITY
AS54268	Capital Health System, Inc CAPITALHEALTH
AS54282	Johnson & Johnson JJINTEROP
AS54291	Inspira Medical Centers, Inc. SJH-ASN01
AS54485	Philadelphia College of Osteopathic Medicine PCOM-EDU
AS54544	Woodward McCoach Inc. WM-549-01
AS54986	1-800-Flowers.com, Inc. FLOWERS
AS62541	Vishay Intertechnology, Inc. VSH-ASN
AS62644	NBC Sports Network NBCSN-DMZ
AS63193	Atlanticare Health System Inc. AHS
AS393228	City of Vineland Board of Education VINELAND
AS393307	Cooper University Hospital CHSNJ-ASN1
AS393516	EDM Americas EDMAMERICASASN
AS394096	Cape Regional Medical Center, Inc. CAPEREGIONALHEALTHSYSTEM
AS394206	Deborah Heart and Lung Center DHLC-AS
AS395503	ComTec Cloud COMTEC-ASN
AS397380	Temple University Health System, Inc. TEMPLE-HEALTH
AS397401	William Hill WILLIAM-HILL-01
AS397589	AMEREAM NJP, LLC AMERICAN-DREAM-NJ
AS397986	Pennsylvania Convention Center Authority PA-CONVENTION-CENTER
AS399885	Evans & Sutherland Computer Corporation EVANS-SUTHERLAND-ASN
AS401071	Sea Box, Inc. SEA-BOX
AS401539	Corvex, Inc. KLUST-US-DE1
AS401712	Nebius Inc. NJ-US-NEBIUS
AS402703	Atlantic AS-ACG

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 83/100

partly	Prefixes covered by valid ROAs 163 of 175 announced prefixes are RPKI valid, 12 have no ROA.	23/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 126 IPv6 prefixes.	15/15
pass	More than one upstream 2 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@comcast.net is published.	15/15
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 2021-01-25.	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/33659"><img src="https://ip-fd.net/badge/asn/33659/health.svg" alt="AS33659 network health on IP-FD.net"></a>

Markdown

[![AS33659 network health](https://ip-fd.net/badge/asn/33659/health.svg)](https://ip-fd.net/asn/33659)

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

Routing changes

Last 30 days

2026-10-06 09:00 UTC

Prefix gone

68.234.42.0/24

WHOIS

aut-num:        AS33659
as-name:        CMCS
handle:         AS33659
registrant:     CCCS (Comcast Cable Communications, LLC)
abuse:          NAPO-ARIN (Network Abuse and Policy Observance) <abuse@comcast.net>
routing:        ROUTI25-ARIN (Routing) <routing@comcast.com>
technical,administrative:IC161-ARIN (Comcast Cable Communications Inc) <CNIPEO-Ip-registration@cable.comcast.com>
last changed:   2021-01-25T15:24:40-05:00
registration:   2005-02-16T14:59:31-05:00
source:         ARIN (RDAP)

Routing data

Updated 5 h ago

Registry record

Fetched 5 h ago 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/33659

const res = await fetch('https://ip-fd.net/api/v1/asn/33659', {
  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/33659', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/33659');
curl_setopt($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/33659", 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.

AS3356	Level 3 Parent, LLC LEVEL3
AS7922	Comcast Cable Communications, LLC COMCAST-7922