Organization
Tri-State Generation and Transmission Association, Inc.
TRI-STATE-2
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 204.75.190.0 – 204.75.192.255 CIDR 204.75.190.0/23, 204.75.192.0/24 Network Name TRI-STATE-2 Handle NET-204-75-190-0-1 Type DIRECT ALLOCATION Parent Network NET-204-0-0-0-0 Organization Tri-State Generation and Transmission Association, Inc. Organization ID TGTA Address 1100 w 116th Ave, Westminster, CO, 80234, United States Country United States (US) Registry ARIN Registered On Sep 06, 1994 Last Updated Sep 21, 2026 Status
active
ASN & Routing
Origin AS AS11250 AS Name TRI-STATE-G-AND-T - Tri-State Generation and Transmission Association Inc., US Announced Prefix 204.75.191.0/24 AS Registry ARIN Prefix Country United States (US) Allocated 1994-09-06 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": [
{
"v4prefix": "204.75.190.0",
"length": 23
},
{
"v4prefix": "204.75.192.0",
"length": 24
}
],
"endAddress": "204.75.192.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-21T16:01:11-04:00"
},
{
"eventAction": "registration",
"eventDate": "2026-01-27T18:31:51-05:00"
}
],
"handle": "NETWO10489-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NETWO10489-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/204.75.191.0"
},
{
"href": "https://whois.arin.net/rest/poc/NETWO10489-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/204.75.191.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse",
"administrative",
"dns",
"noc",
"technical",
"routing"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "3761 Eureka Way\n\nFrederick\nCO\n80516\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Network Engineering"
],
[
"org",
{},
"text",
"Tri-State Generation and Transmission Association, Inc."
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-720-470-0661"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-03-27T17:03:37-04:00"
},
{
"eventAction": "registration",
"eventDate": "1993-09-22T00:00:00-04:00"
}
],
"handle": "TGTA",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/TGTA",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/204.75.191.0"
},
{
"href": "https://whois.arin.net/rest/org/TGTA",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/204.75.191.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Tri-State Generation and Transmission Association, Inc."
],
[
"adr",
{
"label": "1100 w 116th Ave\nWestminster\nCO\n80234\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-21T14:21:23-04:00"
},
{
"eventAction": "registration",
"eventDate": "1994-09-06T00:00:00-04:00"
}
],
"handle": "NET-204-75-190-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/204.75.190.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/204.75.191.0"
},
{
"href": "https://whois.arin.net/rest/net/NET-204-75-190-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/204.75.191.0"
}
],
"name": "TRI-STATE-2",
"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/204.75.191.0"
}
],
"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/204.75.191.0"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-204-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "204.75.190.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
} Contact details of private individuals are redacted.