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AS31904
NCWCD-80513 - Northern Water Announcing routesAS nameNCWCD-80513
OrganisationNorthern Water
Registry (RIR)ARIN
HandleAS31904
RangeAS31904
Registered17 Jan 2008
Last changed02 Mar 2012
1IPv4 prefixes
0IPv6 prefixes
1Upstreams
0Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS33652 | CMCS - Comcast Cable Communications, LLC | 225 |
Downstreams
None seen.
IPv4 prefixes (1)
RPKI-validate all prefixes of AS31904
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | Northern Water | NCWCD | 220 Water Street, Berthoud, CO, 80513, United States | |
| technical, abuse, administrative | NCWCD Support | NSU11-ARIN | [email protected], [email protected], [email protected], +1-800-369-7246;ext2230 | 220 Water Ave, Berthoud, CO, 80513, United States |
| technical, noc, abuse | NCWCD Support | NSU11-ARIN | [email protected], [email protected], [email protected], +1-800-369-7246;ext2230 | 220 Water Ave, Berthoud, CO, 80513, United States |
Raw registry response
{
"endAutnum": 31904,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-23T10:36:10-05:00"
},
{
"eventAction": "registration",
"eventDate": "2007-03-29T17:42:09-04:00"
}
],
"handle": "NSU11-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NSU11-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/31904"
},
{
"href": "https://whois.arin.net/rest/poc/NSU11-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/31904"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "220 Water Ave\nBerthoud\nCO\n80513\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"NCWCD Support"
],
[
"n",
[],
"text",
[
"Support",
"NCWCD",
"",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-800-369-7246;ext2230"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2011-09-24T08:30:57-04:00"
},
{
"eventAction": "registration",
"eventDate": "2007-04-02T13:51:14-04:00"
}
],
"handle": "NCWCD",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NCWCD",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/31904"
},
{
"href": "https://whois.arin.net/rest/org/NCWCD",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/31904"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Northern Water"
],
[
"adr",
{
"label": "220 Water Street\nBerthoud\nCO\n80513\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-23T10:36:10-05:00"
},
{
"eventAction": "registration",
"eventDate": "2007-03-29T17:42:09-04:00"
}
],
"handle": "NSU11-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NSU11-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/31904"
},
{
"href": "https://whois.arin.net/rest/poc/NSU11-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/31904"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"noc",
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "220 Water Ave\nBerthoud\nCO\n80513\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"NCWCD Support"
],
[
"n",
[],
"text",
[
"Support",
"NCWCD",
"",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-800-369-7246;ext2230"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-03-02T08:03:18-05:00"
},
{
"eventAction": "registration",
"eventDate": "2008-01-16T16:17:54-05:00"
}
],
"handle": "AS31904",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/31904",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/31904"
},
{
"href": "https://whois.arin.net/rest/asn/AS31904",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/31904"
}
],
"name": "NCWCD-80513",
"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/31904"
}
],
"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/31904"
}
],
"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": 31904,
"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.