Organization
Columbia/HCA Healthcare, Inc.
COLUMBIA-HCA
Registered
Jan 18, 2000
26 years ago
IPv4 Prefixes
44
11,776 addresses
IPv6 Prefixes
0
BGP Neighbours
2
2 upstream/peer · 0 downstream
Registration
AS Number AS14626 AS Name COLUMBIA-HCA Organization Columbia/HCA Healthcare, Inc. Organization ID COLUMB-89 Address 2555 Park Plaza, Nashville, TN, 37203, United States Country United States (US) Registry ARIN Allocated Jan 18, 2000 Record Created Jan 18, 2000 Last Updated Mar 02, 2012 Status
active
WHOIS Server whois.arin.net AS Description COLUMBIA-HCA - Columbia/HCA Healthcare, Inc., US Abuse Email [email protected] Abuse Phone +1-615-344-2772;ext2 IPv4 Prefixes
44 prefixes · 11,776 addresses Routing data as of 2026-10-10 00:00 UTC
165.0.0.0/8 · 36 prefixes · 9,728 addresses
| Prefix | Range | Addresses |
|---|---|---|
| 165.214.4.0/24 | 165.214.4.0 – 165.214.4.255 | 256 |
| 165.214.11.0/24 | 165.214.11.0 – 165.214.11.255 | 256 |
| 165.214.12.0/24 | 165.214.12.0 – 165.214.12.255 | 256 |
| 165.214.14.0/24 | 165.214.14.0 – 165.214.14.255 | 256 |
| 165.214.32.0/24 | 165.214.32.0 – 165.214.32.255 | 256 |
| 165.214.33.0/24 | 165.214.33.0 – 165.214.33.255 | 256 |
| 165.214.34.0/24 | 165.214.34.0 – 165.214.34.255 | 256 |
| 165.214.35.0/24 | 165.214.35.0 – 165.214.35.255 | 256 |
| 165.214.36.0/24 | 165.214.36.0 – 165.214.36.255 | 256 |
| 165.214.37.0/24 | 165.214.37.0 – 165.214.37.255 | 256 |
| 165.214.38.0/24 | 165.214.38.0 – 165.214.38.255 | 256 |
| 165.214.39.0/24 | 165.214.39.0 – 165.214.39.255 | 256 |
| 165.214.40.0/24 | 165.214.40.0 – 165.214.40.255 | 256 |
| 165.214.41.0/24 | 165.214.41.0 – 165.214.41.255 | 256 |
| 165.214.42.0/24 | 165.214.42.0 – 165.214.42.255 | 256 |
| 165.214.46.0/23 | 165.214.46.0 – 165.214.47.255 | 512 |
| 165.214.48.0/23 | 165.214.48.0 – 165.214.49.255 | 512 |
| 165.214.50.0/24 | 165.214.50.0 – 165.214.50.255 | 256 |
| 165.214.51.0/24 | 165.214.51.0 – 165.214.51.255 | 256 |
| 165.214.63.0/24 | 165.214.63.0 – 165.214.63.255 | 256 |
| 165.214.64.0/24 | 165.214.64.0 – 165.214.64.255 | 256 |
| 165.214.65.0/24 | 165.214.65.0 – 165.214.65.255 | 256 |
| 165.214.66.0/24 | 165.214.66.0 – 165.214.66.255 | 256 |
| 165.214.67.0/24 | 165.214.67.0 – 165.214.67.255 | 256 |
| 165.214.68.0/24 | 165.214.68.0 – 165.214.68.255 | 256 |
| 165.214.69.0/24 | 165.214.69.0 – 165.214.69.255 | 256 |
| 165.214.72.0/24 | 165.214.72.0 – 165.214.72.255 | 256 |
| 165.214.73.0/24 | 165.214.73.0 – 165.214.73.255 | 256 |
| 165.214.74.0/24 | 165.214.74.0 – 165.214.74.255 | 256 |
| 165.214.75.0/24 | 165.214.75.0 – 165.214.75.255 | 256 |
| 165.214.91.0/24 | 165.214.91.0 – 165.214.91.255 | 256 |
| 165.214.92.0/24 | 165.214.92.0 – 165.214.92.255 | 256 |
| 165.214.93.0/24 | 165.214.93.0 – 165.214.93.255 | 256 |
| 165.214.94.0/24 | 165.214.94.0 – 165.214.94.255 | 256 |
| 165.214.95.0/24 | 165.214.95.0 – 165.214.95.255 | 256 |
| 165.214.96.0/24 | 165.214.96.0 – 165.214.96.255 | 256 |
199.0.0.0/8 · 8 prefixes · 2,048 addresses
| Prefix | Range | Addresses |
|---|---|---|
| 199.91.32.0/24 | 199.91.32.0 – 199.91.32.255 | 256 |
| 199.91.33.0/24 | 199.91.33.0 – 199.91.33.255 | 256 |
| 199.91.34.0/24 | 199.91.34.0 – 199.91.34.255 | 256 |
| 199.91.36.0/24 | 199.91.36.0 – 199.91.36.255 | 256 |
| 199.91.37.0/24 | 199.91.37.0 – 199.91.37.255 | 256 |
| 199.91.38.0/24 | 199.91.38.0 – 199.91.38.255 | 256 |
| 199.91.39.0/24 | 199.91.39.0 – 199.91.39.255 | 256 |
| 199.91.40.0/24 | 199.91.40.0 – 199.91.40.255 | 256 |
IPv6 Prefixes
This AS does not currently announce any IPv6 prefixes.
BGP Neighbours
2 unique neighbours · 2 upstream/peer · 0 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Upstream & peer side (2)
Raw RDAP Response
{
"endAutnum": 14626,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-11-03T11:22:12-05:00"
},
{
"eventAction": "registration",
"eventDate": "2013-08-16T14:33:59-04:00"
}
],
"handle": "HITS1-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/HITS1-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/14626"
},
{
"href": "https://whois.arin.net/rest/poc/HITS1-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/14626"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse",
"noc",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1 Park Plaza\nNashville\nTN\n37203\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"HCA Information Technology and Services"
],
[
"org",
{},
"text",
"HCA INFORMATION TECHNOLOGY AND SERVICES, INC."
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-615-344-2772;ext2"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2013-08-16T14:48:46-04:00"
},
{
"eventAction": "registration",
"eventDate": "2000-01-18T00:00:00-05:00"
}
],
"handle": "COLUMB-89",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/COLUMB-89",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/14626"
},
{
"href": "https://whois.arin.net/rest/org/COLUMB-89",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/14626"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Columbia/HCA Healthcare, Inc."
],
[
"adr",
{
"label": "2555 Park Plaza\nNashville\nTN\n37203\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-08-19T10:06:27-04:00"
},
{
"eventAction": "registration",
"eventDate": "2000-01-18T16:51:51-05:00"
}
],
"handle": "KW256-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/KW256-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/14626"
},
{
"href": "https://whois.arin.net/rest/poc/KW256-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/14626"
}
],
"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 2025-08-19"
],
"title": "Unvalidated POC"
}
],
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-03-02T08:03:18-05:00"
},
{
"eventAction": "registration",
"eventDate": "2000-01-18T00:00:00-05:00"
}
],
"handle": "AS14626",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/14626",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/14626"
},
{
"href": "https://whois.arin.net/rest/asn/AS14626",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/14626"
}
],
"name": "COLUMBIA-HCA",
"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/14626"
}
],
"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/14626"
}
],
"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": 14626,
"status": [
"active"
]
} Contact details of private individuals are redacted.