Organization
Comcast Cable Communications, LLC
COMCAST6NET
Location
Prince Frederick
Maryland, United States (US)
Hostname
—
Geolocation
United States (US) United States
- Country
- United States (US)
- Region
- Maryland
- City
- Prince Frederick
- Continent
- North America
- Coordinates
- 38.5404, -76.5844 View on map ↗
Network Information
IP Range 2001:558:: – 2001:55f:ffff:ffff:ffff:ffff:ffff:ffff CIDR 2001:558::/29 Network Name COMCAST6NET Handle NET6-2001-558-1 Type DIRECT ALLOCATION Parent Network NET6-2001-400-0 Organization Comcast Cable Communications, LLC Organization ID CCCS Address 1800 Bishops Gate Blvd, Mt Laurel, NJ, 08054, United States Country United States (US) Registry ARIN Registered On Jan 06, 2003 Last Updated Nov 06, 2025 Status
active
ASN & Routing
Origin AS AS33657 AS Name CMCS - Comcast Cable Communications, LLC, US Announced Prefix 2001:559:c478::/48 AS Registry ARIN Prefix Country United States (US) Allocated 2003-01-06 RPKI Origin Valid (covered by a matching ROA)
Reverse DNS
No PTR record is published for this address.
Abuse Contact
Raw RDAP Response
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v6prefix": "2001:558::",
"length": 29
}
],
"endAddress": "2001:55f:ffff:ffff:ffff:ffff:ffff:ffff",
"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/ip/2001:559:c42a::"
},
{
"href": "https://whois.arin.net/rest/poc/NAPO-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2001:559:c42a::"
}
],
"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/ip/2001:559:c42a::"
},
{
"href": "https://whois.arin.net/rest/poc/ROUTI25-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2001:559:c42a::"
}
],
"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/ip/2001:559:c42a::"
},
{
"href": "https://whois.arin.net/rest/poc/IC161-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2001:559:c42a::"
}
],
"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/ip/2001:559:c42a::"
},
{
"href": "https://whois.arin.net/rest/org/CCCS",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2001:559:c42a::"
}
],
"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": "2025-11-06T09:37:41-05:00"
},
{
"eventAction": "registration",
"eventDate": "2003-01-06T15:41:29-05:00"
}
],
"handle": "NET6-2001-558-1",
"ipVersion": "v6",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/2001:558::",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2001:559:c42a::"
},
{
"href": "https://whois.arin.net/rest/net/NET6-2001-558-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2001:559:c42a::"
}
],
"name": "COMCAST6NET",
"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/ip/2001:559:c42a::"
}
],
"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/ip/2001:559:c42a::"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET6-2001-400-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"remarks": [
{
"description": [
"CC1",
"-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----"
],
"title": "Registration Comments"
}
],
"startAddress": "2001:558::",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
} Contact details of private individuals are redacted.