Organization
University of Colorado Denver
CU-DENVER
Location
Aurora (Fitzsimons)
Colorado, United States (US)
Hostname
—
Geolocation
United States (US) United States
- Country
- United States (US)
- Region
- Colorado
- City
- Aurora (Fitzsimons)
- Continent
- North America
- Coordinates
- 39.7453, -104.838 View on map ↗
Network Information
IP Range 2620:123:5000:: – 2620:123:50ff:ffff:ffff:ffff:ffff:ffff CIDR 2620:123:5000::/40 Network Name CU-DENVER Handle NET6-2620-123-5000-1 Type DIRECT ALLOCATION Parent Network NET6-2620-1 Organization University of Colorado Denver Organization ID UCAD-1 Address 1945 N. Wheeling St, Aurora, CO, 80045, United States Country United States (US) Registry ARIN Registered On Oct 28, 2015 Last Updated Dec 15, 2021 Status
active
ASN & Routing
Origin AS AS16519 AS Name CUDENVER - University of Colorado Denver, US Announced Prefix 2620:123:5000::/40 AS Registry ARIN Prefix Country United States (US) Allocated 2015-10-28 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": "2620:123:5000::",
"length": 40
}
],
"endAddress": "2620:123:50ff:ffff:ffff:ffff:ffff:ffff",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-08-18T10:38:57-04:00"
},
{
"eventAction": "registration",
"eventDate": "2015-08-05T13:17:28-04:00"
}
],
"handle": "ARTWI-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ARTWI-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2620:123:5000::"
},
{
"href": "https://whois.arin.net/rest/poc/ARTWI-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2620:123:5000::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2024-08-17"
],
"title": "Unvalidated POC"
}
],
"roles": [
"abuse",
"noc",
"routing",
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1945 N Wheeling St\nAurora\nCO\n80045\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Piotr Artwich"
],
[
"n",
{},
"text",
[
"Artwich",
"Piotr",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-303-724-7878"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-06T15:09:11-05:00"
},
{
"eventAction": "registration",
"eventDate": "2022-11-09T13:31:36-05:00"
}
],
"handle": "LINDG32-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/LINDG32-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2620:123:5000::"
},
{
"href": "https://whois.arin.net/rest/poc/LINDG32-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2620:123:5000::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse",
"routing",
"technical",
"administrative",
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1945 N Wheeling St\nAurora\nCO\n80045\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Mattias Lindgren"
],
[
"n",
{},
"text",
[
"Lindgren",
"Mattias",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-303-724-0010"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-09-25T12:11:38-04:00"
},
{
"eventAction": "registration",
"eventDate": "2000-05-05T00:00:00-04:00"
}
],
"handle": "UCAD-1",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UCAD-1",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2620:123:5000::"
},
{
"href": "https://whois.arin.net/rest/org/UCAD-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2620:123:5000::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"University of Colorado Denver"
],
[
"adr",
{
"label": "1945 N. Wheeling St\nAurora\nCO\n80045\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2021-12-14T20:28:31-05:00"
},
{
"eventAction": "registration",
"eventDate": "2015-10-28T18:43:56-04:00"
}
],
"handle": "NET6-2620-123-5000-1",
"ipVersion": "v6",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/2620:123:5000::",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2620:123:5000::"
},
{
"href": "https://whois.arin.net/rest/net/NET6-2620-123-5000-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2620:123:5000::"
}
],
"name": "CU-DENVER",
"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/2620:123:5000::"
}
],
"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/2620:123:5000::"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET6-2620-1",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "2620:123:5000::",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
} Contact details of private individuals are redacted.