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AS33667
CMCS - Comcast Cable Communications, LLC Announcing routesAS nameCMCS
OrganisationComcast Cable Communications, LLC
Registry (RIR)ARIN
HandleAS33667
RangeAS33667
Registered17 Feb 2005
Last changed26 Jan 2021
Abuse contact[email protected]
66IPv4 prefixes
57IPv6 prefixes
2Upstreams
141Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS3356 | LEVEL3 - Level 3 Parent, LLC | 5853 |
| AS7922 | COMCAST-7922 - Comcast Cable Communications, LLC | 4419 |
Downstreams
| AS | Network name | Visibility |
|---|---|---|
| AS32688 | GOLDEN1-CU-NET - THE GOLDEN 1 CREDIT UNION | 355 |
| AS23338 | — | 298 |
| AS13335 | CLOUDFLARENET - Cloudflare, Inc. | 272 |
| AS27580 | ENGINEERING-ASN1 - CONVERGEONE HOLDINGS, INC. | 216 |
| AS20940 | AKAMAI-ASN1 Akamai International B.V. | 191 |
| AS54113 | FASTLY - Fastly, Inc. | 185 |
| AS17381 | AS-WSI-ECOM-WEST - Williams-Sonoma | 156 |
| AS398204 | CITY-OF-STOCKTON - City of Stockton | 155 |
| AS11620 | SUCCEED-NET - Succeed.Net | 152 |
| AS22617 | SACCOURT - Superior Court of California, County of Sacramento | 148 |
| AS53782 | PCOASTP - Pacific Coast Producers | 148 |
| AS46867 | AUDEAMUS - Sebastian | 147 |
| AS22768 | SYNERGYBROADBAND-MI-02 - SYNERGY BROADBAND | 146 |
| AS14443 | BFS-49-14443 - Broadridge Financial Solutions, Inc. | 144 |
| AS25753 | CALPERS - California Public Employees' Retirement System | 144 |
IPv4 prefixes (66)
192.206.19.0/24162.218.64.0/23192.189.161.0/24107.158.6.0/24192.70.238.0/24198.202.219.0/24103.111.63.0/2474.1.24.0/23138.226.48.0/21138.226.192.0/21169.230.77.0/2423.230.200.0/2171.19.136.0/245.182.195.0/24107.158.165.0/2469.91.146.0/24169.230.76.0/2440.27.174.0/23209.78.88.0/24169.128.228.0/2278.31.206.0/24157.240.152.0/245.182.194.0/24107.0.64.0/23185.201.43.0/2450.239.185.0/2436.255.215.0/2471.19.137.0/24139.181.26.0/245.182.186.0/24198.145.106.0/24135.132.72.0/22204.145.245.0/2450.222.62.0/24135.132.76.0/22107.158.164.0/2450.203.201.0/245.182.193.0/24157.240.151.0/2445.67.141.0/249.142.48.0/2071.19.138.0/2450.207.246.0/24135.132.64.0/19107.158.7.0/2463.246.152.0/2450.236.209.0/24216.170.120.0/249.142.96.0/19162.218.89.0/24103.216.197.0/24140.89.64.0/1816.5.8.0/23209.222.242.0/2363.246.159.0/2450.203.5.0/2463.246.148.0/24138.226.64.0/2071.19.139.0/24185.22.43.0/24100.42.16.0/239.142.118.0/23104.247.212.0/23185.201.41.0/24138.226.112.0/21138.226.196.0/22
IPv6 prefixes (57)
2001:559:82f6::/482001:559:c024::/482001:559:8492::/482001:559:1b1::/482001:559:c551::/482001:559:8202::/482001:559:8167::/482001:559:c222::/482001:559:c117::/482001:559:13c::/482a0c:1902:a7b3::/482001:559:492::/482001:559:c395::/482001:559:8c::/482001:559:83e1::/482001:559:845d::/482a0c:1905:c491::/482001:559:86a7::/482001:559:c4d5::/482001:559:123::/482620:10a:6000::/442001:559:c39a::/482001:559:75a::/482a03:2887:ff31::/482001:559:c107::/482001:559:8091::/482001:559:860f::/482001:559:5a2::/482001:559:85d8::/482001:559:2c1::/482001:559:c37b::/482001:559:8784::/482001:559:80a8::/482001:559:249::/482001:559:32d::/482001:559:c219::/482001:559:5de::/482a0c:1900::/292001:559:c46c::/482001:559:c36d::/482001:559:c294::/482a0c:1907:6d2e::/482a0c:1904:3f82::/482001:559:87c8::/482001:559:8610::/482001:559:47c::/482001:559:86ec::/482001:559:859a::/482001:559:c144::/482001:559:7cb::/482001:559:8b::/482001:559:8763::/482a03:2887:ff32::/482001:559:712::/482001:559:c3fd::/482001:559:c203::/482001:559:c475::/48
RPKI-validate all prefixes of AS33667
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | Comcast Cable Communications, LLC | CCCS | 1800 Bishops Gate Blvd, Mt Laurel, NJ, 08054, United States | |
| abuse | Network Abuse and Policy Observance | NAPO-ARIN | [email protected], +1-888-565-4329 | 1800 Bishops Gate Blvd, Mount Laurel, NJ, 08054, United States |
| routing | Routing | ROUTI25-ARIN | [email protected], +1-856-792-2300 | 1800 Bishops Gate Blvd, Mt Laurel, NJ, 08054, United States |
| technical, administrative | Comcast Cable Communications Inc | IC161-ARIN | [email protected], +1-856-792-2300 | 1800 Bishops Gate Blvd, Mount Laurel, NJ, 08054, United States |
Raw registry response
{
"endAutnum": 33667,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-21T11:13:31-04:00"
},
{
"eventAction": "registration",
"eventDate": "2002-09-30T17:45:14-04:00"
}
],
"handle": "NAPO-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NAPO-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/33667"
},
{
"href": "https://whois.arin.net/rest/poc/NAPO-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/33667"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"This contact is to be used for network abuse, spam/phishing, and legally constituted requests for information or action. It is not for any other purpose."
],
"title": "Registration Comments"
}
],
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "1800 Bishops Gate Blvd\nMount Laurel\nNJ\n08054\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Network Abuse and Policy Observance"
],
[
"org",
[],
"text",
"Comcast Cable Communications, Inc."
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-888-565-4329"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-02T12:36:43-04:00"
},
{
"eventAction": "registration",
"eventDate": "2020-11-18T14:40:04-05:00"
}
],
"handle": "ROUTI25-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ROUTI25-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/33667"
},
{
"href": "https://whois.arin.net/rest/poc/ROUTI25-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/33667"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Issues related to Routing, RPKI, Route Registry.",
"Not monitored 24/7.",
"Please email, there is no available phone number."
],
"title": "Registration Comments"
}
],
"roles": [
"routing"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "1800 Bishops Gate Blvd\nMt Laurel\nNJ\n08054\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Routing"
],
[
"org",
[],
"text",
"Comcast"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-856-792-2300"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-21T12:18:12-04:00"
},
{
"eventAction": "registration",
"eventDate": "2002-06-12T11:30:41-04:00"
}
],
"handle": "IC161-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/IC161-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/33667"
},
{
"href": "https://whois.arin.net/rest/poc/IC161-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/33667"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"This is not an Abuse, Spam, or Legal notification POC.",
"Please use [email protected] for all security, takedown, and emergency issues. This IP Registration address cannot address those issues.",
"Please email, there is no available phone number."
],
"title": "Registration Comments"
}
],
"roles": [
"technical",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "1800 Bishops Gate Blvd\nMount Laurel\nNJ\n08054\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Comcast Cable Communications Inc"
],
[
"org",
[],
"text",
"Comcast Cable Communications, Inc."
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-856-792-2300"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2020-11-18T14:58:28-05:00"
},
{
"eventAction": "registration",
"eventDate": "2001-09-18T00:00:00-04:00"
}
],
"handle": "CCCS",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CCCS",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/33667"
},
{
"href": "https://whois.arin.net/rest/org/CCCS",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/33667"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Comcast Cable Communications, LLC"
],
[
"adr",
{
"label": "1800 Bishops Gate Blvd\nMt Laurel\nNJ\n08054\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2021-01-25T15:27:26-05:00"
},
{
"eventAction": "registration",
"eventDate": "2005-02-16T14:59:31-05:00"
}
],
"handle": "AS33667",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/33667",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/33667"
},
{
"href": "https://whois.arin.net/rest/asn/AS33667",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/33667"
}
],
"name": "CMCS",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/33667"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/33667"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"startAutnum": 33667,
"status": [
"active"
]
}Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.