WHOIS lookup
Look up a domain, an IPv4 or IPv6 address or an AS number (ASN). For a domain: who registered it, which registrar holds it, when it expires and what its status codes mean. For an address or ASN: which network it belongs to, who holds it and where to report abuse. Asked over RDAP and classic WHOIS, of the registry and then the registrar.
2001:558:100e:5:68:87:72:244
IP addressHeld by Comcast Cable Communications, LLC2 requests in 0.8 s2026-11-09 05:10:43 UTCRegistered
Network
| Range | 2001:558:: – 2001:55f:ffff:ffff:ffff:ffff:ffff:ffff |
|---|---|
| CIDR | 2001:558::/29 |
| Name | COMCAST6NET |
| Held by | Comcast Cable Communications, LLC CCCS |
| Country | US |
| Type | DIRECT ALLOCATION |
| Handle | NET6-2001-558-1 · part of NET6-2001-400-0 |
| Registered | · 23 years, 10 months ago |
| Last changed | · 25 days ago |
| Status | active |
| Report abuse | abuse@comcast.net · +1-888-565-4329 |
| Registry | ARIN |
Reverse DNS and more: DNS lookup for 2001:558:100e:5:68:87:72:244.
WHOIS
The raw replies over port 43, as the whois command shows them.
ARIN whois.arin.net
# # 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. # NetRange: 2001:558:: - 2001:55F:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF CIDR: 2001:558::/29 NetName: COMCAST6NET NetHandle: NET6-2001-558-1 Parent: ARIN-001 (NET6-2001-400-0) NetType: Direct Allocation OriginAS: Organization: Comcast Cable Communications, LLC (CCCS) RegDate: 2003-01-06 Updated: 2026-10-14 Comment: CC1 Comment: -----BEGIN CERTIFICATE-----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-----END CERTIFICATE----- Ref: https://rdap.arin.net/registry/ip/2001:558:: OrgName: Comcast Cable Communications, LLC OrgId: CCCS Address: 1800 Bishops Gate Blvd City: Mt Laurel StateProv: NJ PostalCode: 08054 Country: US RegDate: 2001-09-18 Updated: 2020-11-18 Ref: https://rdap.arin.net/registry/entity/CCCS OrgRoutingHandle: ROUTI25-ARIN OrgRoutingName: Routing OrgRoutingPhone: +1-856-792-2300 OrgRoutingEmail: routing@comcast.com OrgRoutingRef: https://rdap.arin.net/registry/entity/ROUTI25-ARIN OrgTechHandle: IC161-ARIN OrgTechName: Comcast Cable Communications Inc OrgTechPhone: +1-856-792-2300 OrgTechEmail: CNIPEO-Ip-registration@cable.comcast.com OrgTechRef: https://rdap.arin.net/registry/entity/IC161-ARIN OrgAbuseHandle: NAPO-ARIN OrgAbuseName: Network Abuse and Policy Observance OrgAbusePhone: +1-888-565-4329 OrgAbuseEmail: abuse@comcast.net OrgAbuseRef: https://rdap.arin.net/registry/entity/NAPO-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. #
RDAP
The JSON replies WHOIS is being replaced by.
ARIN https://rdap.arin.net/registry/ip/2001:558:100e:5:68:87:72:244
{
"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/2001:558:100e:5:68:87:72:244"
},
{
"href": "https://whois.arin.net/rest/poc/NAPO-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2001:558:100e:5:68:87:72:244"
}
],
"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",
"abuse@comcast.net"
],
[
"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/2001:558:100e:5:68:87:72:244"
},
{
"href": "https://whois.arin.net/rest/poc/ROUTI25-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2001:558:100e:5:68:87:72:244"
}
],
"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",
"routing@comcast.com"
],
[
"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/2001:558:100e:5:68:87:72:244"
},
{
"href": "https://whois.arin.net/rest/poc/IC161-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2001:558:100e:5:68:87:72:244"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"This is not an Abuse, Spam, or Legal notification POC.",
"Please use Abuse@comcast.net 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",
"CNIPEO-Ip-registration@cable.comcast.com"
],
[
"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/2001:558:100e:5:68:87:72:244"
},
{
"href": "https://whois.arin.net/rest/org/CCCS",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2001:558:100e:5:68:87:72:244"
}
],
"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": "2026-10-14T13:16:53-04:00"
},
{
"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/2001:558:100e:5:68:87:72:244"
},
{
"href": "https://whois.arin.net/rest/net/NET6-2001-558-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2001:558:100e:5:68:87:72:244"
}
],
"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/2001:558:100e:5:68:87:72:244"
}
],
"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/2001:558:100e:5:68:87:72:244"
}
],
"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"
}Servers asked
| Protocol | Server | Result | Time |
|---|---|---|---|
| RDAP | https://rdap.arin.net/registry/ip/2001:558:100e:5:68:87:72:244 | HTTP 200 | 458 ms |
| WHOIS | whois.arin.net “n + 2001:558:100e:5:68:87:72:244” | 3,343 bytes | 301 ms |