Organization
CSX Technology
CSXT-AS-1
Registered
Jul 16, 1999
27 years ago
IPv4 Prefixes
8
3,840 addresses
IPv6 Prefixes
0
BGP Neighbours
1
1 upstream/peer · 0 downstream
Registration
AS Number AS13630 AS Name CSXT-AS-1 Organization CSX Technology Organization ID CSXTEC Address 550 Water Street, Jacksonville, FL, 32202, United States Country United States (US) Registry ARIN Allocated Jul 16, 1999 Record Created Jul 16, 1999 Last Updated Jul 26, 2017 Status
active
WHOIS Server whois.arin.net AS Description CSXT-AS-1 - CSX Technology, US Abuse Email [email protected] Abuse Phone +1-904-279-6736 IPv4 Prefixes
8 prefixes · 3,840 addresses Routing data as of 2026-10-17 16:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 216.231.208.0/21 | 216.231.208.0 – 216.231.215.255 | 2,048 |
| 216.231.216.0/24 | 216.231.216.0 – 216.231.216.255 | 256 |
| 216.231.217.0/24 | 216.231.217.0 – 216.231.217.255 | 256 |
| 216.231.218.0/24 | 216.231.218.0 – 216.231.218.255 | 256 |
| 216.231.219.0/24 | 216.231.219.0 – 216.231.219.255 | 256 |
| 216.231.221.0/24 | 216.231.221.0 – 216.231.221.255 | 256 |
| 216.231.222.0/24 | 216.231.222.0 – 216.231.222.255 | 256 |
| 216.231.223.0/24 | 216.231.223.0 – 216.231.223.255 | 256 |
IPv6 Prefixes
This AS does not currently announce any IPv6 prefixes.
BGP Neighbours
1 unique neighbour · 1 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 (1)
AS Name AS paths IPv4 sightings IPv6 sightings AS13335 CLOUDFLARENET - Cloudflare, Inc. 275 2,962 0
Raw RDAP Response
{
"endAutnum": 13630,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-11-18T10:10:33-05:00"
},
{
"eventAction": "registration",
"eventDate": "2013-04-19T08:06:00-04:00"
}
],
"handle": "KAMMD1-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/KAMMD1-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/13630"
},
{
"href": "https://whois.arin.net/rest/poc/KAMMD1-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/13630"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse",
"technical",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "6735 Southpoint Parkway\nJacksonville\nFL\n32216\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Daniel Kamm"
],
[
"n",
{},
"text",
[
"Kamm",
"Daniel",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-904-279-6736"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2013-04-26T14:30:49-04:00"
},
{
"eventAction": "registration",
"eventDate": "1990-03-26T00:00:00-05:00"
}
],
"handle": "CSXTEC",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CSXTEC",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/13630"
},
{
"href": "https://whois.arin.net/rest/org/CSXTEC",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/13630"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"CSX Technology"
],
[
"adr",
{
"label": "550 Water Street\nJacksonville\nFL\n32202\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-11-18T10:10:33-05:00"
},
{
"eventAction": "registration",
"eventDate": "2013-04-19T08:06:00-04:00"
}
],
"handle": "KAMMD1-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/KAMMD1-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/13630"
},
{
"href": "https://whois.arin.net/rest/poc/KAMMD1-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/13630"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2017-07-26T10:58:57-04:00"
},
{
"eventAction": "registration",
"eventDate": "1999-07-16T00:00:00-04:00"
}
],
"handle": "AS13630",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/13630",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/13630"
},
{
"href": "https://whois.arin.net/rest/asn/AS13630",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/13630"
}
],
"name": "CSXT-AS-1",
"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/13630"
}
],
"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/13630"
}
],
"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": 13630,
"status": [
"active"
]
} Contact details of private individuals are redacted.