Organization
Optimum
SUDDE-V6
Location
Denver
Colorado, United States (US)
Hostname
—
Geolocation
United States (US) United States
- Country
- United States (US)
- Region
- Colorado
- City
- Denver
- Continent
- North America
- Coordinates
- 39.7392, -104.99 View on map ↗
Network Information
IP Range 2600:5400:: – 2600:541f:ffff:ffff:ffff:ffff:ffff:ffff CIDR 2600:5400::/27 Network Name SUDDE-V6 Handle NET6-2600-5400-1 Type DIRECT ALLOCATION Parent Network NET6-2600-1 Organization Optimum Organization ID SUDDE Address 311 NNW Loop 323, Tyler, TX, 75701, United States Country United States (US) Registry ARIN Registered On Aug 29, 2011 Last Updated Mar 20, 2012 Status
active
ASN & Routing
Origin AS AS19108 AS Name SUDDENLINK-COMMUNICATIONS - Optimum, US Announced Prefix 2600:5400:e100::/48 AS Registry ARIN Prefix Country United States (US) Allocated 2011-08-29 RPKI Origin Not found (no ROA covers this prefix)
Reverse DNS
No PTR record is published for this address.
Abuse Contact
Raw RDAP Response
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v6prefix": "2600:5400::",
"length": 27
}
],
"endAddress": "2600:541f:ffff:ffff:ffff:ffff:ffff:ffff",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-12-19T14:54:31-05:00"
},
{
"eventAction": "registration",
"eventDate": "2018-02-09T14:53:42-05:00"
}
],
"handle": "ABUSE6997-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE6997-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:5400:e100::"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE6997-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:5400:e100::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "311 NNW Loop 323\nTyler\nTX\n75702\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Abuse Suddenlink"
],
[
"org",
{},
"text",
"Suddenlink Communications"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-903-266-4800"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-12-18T10:42:27-05:00"
},
{
"eventAction": "registration",
"eventDate": "2017-02-03T15:41:30-05:00"
}
],
"handle": "NETAD233-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NETAD233-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:5400:e100::"
},
{
"href": "https://whois.arin.net/rest/poc/NETAD233-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:5400:e100::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "311 NNW Loop 323\nTyler\nTX\n75702\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"NetAdmin"
],
[
"org",
{},
"text",
"Optimum."
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-866-232-5455"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-12-19T14:54:48-05:00"
},
{
"eventAction": "registration",
"eventDate": "2018-02-13T10:52:49-05:00"
}
],
"handle": "NOCSU37-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOCSU37-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:5400:e100::"
},
{
"href": "https://whois.arin.net/rest/poc/NOCSU37-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:5400:e100::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "311 NNW Loop 323\nTyler\nTX\n75701\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"NOC Suddenlink"
],
[
"org",
{},
"text",
"Suddenlink Communications"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-866-232-5455"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-12-18T10:43:18-05:00"
},
{
"eventAction": "registration",
"eventDate": "2018-02-05T11:08:56-05:00"
}
],
"handle": "AUIO-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/AUIO-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:5400:e100::"
},
{
"href": "https://whois.arin.net/rest/poc/AUIO-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:5400:e100::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1111 Stewart Ave.\nBethpage\nNY\n11714\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Altice USA Internet Operations"
],
[
"org",
{},
"text",
"Altice USA"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-516-803-2300"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-08-06T11:59:47-04:00"
},
{
"eventAction": "registration",
"eventDate": "2006-05-25T13:08:12-04:00"
}
],
"handle": "SUDDE",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/SUDDE",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:5400:e100::"
},
{
"href": "https://whois.arin.net/rest/org/SUDDE",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:5400:e100::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Optimum"
],
[
"adr",
{
"label": "311 NNW Loop 323\nTyler\nTX\n75701\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-03-20T10:38:58-04:00"
},
{
"eventAction": "registration",
"eventDate": "2011-08-29T10:31:01-04:00"
}
],
"handle": "NET6-2600-5400-1",
"ipVersion": "v6",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/2600:5400::",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:5400:e100::"
},
{
"href": "https://whois.arin.net/rest/net/NET6-2600-5400-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:5400:e100::"
}
],
"name": "SUDDE-V6",
"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/2600:5400:e100::"
}
],
"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/2600:5400:e100::"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET6-2600-1",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"remarks": [
{
"description": [
"Suddenlink Communications\r",
"http://www.suddenlink.com"
],
"title": "Registration Comments"
}
],
"startAddress": "2600:5400::",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
} Contact details of private individuals are redacted.