AS Name
CHECS
Registered
Oct 01, 1996
30 years ago
IPv4 Prefixes
16
12,544 addresses
IPv6 Prefixes
1
65,536 × /48
BGP Neighbours
6
3 upstream/peer · 5 downstream
Registration
AS Number AS3912 AS Name CHECS Organization CHECS Organization ID CHECSN-Z Address Box 30001 MSC 3AT, Las Cruces, NM, 88033, United States Country United States (US) Registry ARIN Allocated Oct 01, 1996 Record Created Oct 01, 1996 Last Updated Sep 27, 2023 Status
active
WHOIS Server whois.arin.net AS Description CHECS - CHECS, US Abuse Email [email protected] Abuse Phone +1-575-646-5999 IPv4 Prefixes
16 prefixes · 12,544 addresses Routing data as of 2026-10-08 08:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 63.225.1.0/24 | 63.225.1.0 – 63.225.1.255 | 256 |
| 192.65.78.0/24 | 192.65.78.0 – 192.65.78.255 | 256 |
| 192.88.137.0/24 | 192.88.137.0 – 192.88.137.255 | 256 |
| 192.88.138.0/24 | 192.88.138.0 – 192.88.138.255 | 256 |
| 192.88.139.0/24 | 192.88.139.0 – 192.88.139.255 | 256 |
| 198.59.187.0/24 | 198.59.187.0 – 198.59.187.255 | 256 |
| 204.134.48.0/24 | 204.134.48.0 – 204.134.48.255 | 256 |
| 204.134.49.0/24 | 204.134.49.0 – 204.134.49.255 | 256 |
| 204.134.50.0/24 | 204.134.50.0 – 204.134.50.255 | 256 |
| 204.134.55.0/24 | 204.134.55.0 – 204.134.55.255 | 256 |
| 204.134.56.0/23 | 204.134.56.0 – 204.134.57.255 | 512 |
| 204.134.66.0/24 | 204.134.66.0 – 204.134.66.255 | 256 |
| 204.134.102.0/24 | 204.134.102.0 – 204.134.102.255 | 256 |
| 204.134.103.0/24 | 204.134.103.0 – 204.134.103.255 | 256 |
| 206.206.128.0/19 | 206.206.128.0 – 206.206.159.255 | 8,192 |
| 216.161.32.0/23 | 216.161.32.0 – 216.161.33.255 | 512 |
IPv6 Prefixes
1 prefix · 65,536 × /48 Routing data as of 2026-10-08 08:00 UTC
| Prefix | Addresses |
|---|---|
| 2607:7840:: | 296 |
BGP Neighbours
6 unique neighbours · 3 upstream/peer · 5 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. Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams). Upstream & peer side (3)
Downstream side (5)
Raw RDAP Response
{
"endAutnum": 3912,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-27T08:10:23-04:00"
},
{
"eventAction": "registration",
"eventDate": "2015-09-23T19:14:47-04:00"
}
],
"handle": "CHECS-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CHECS-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/3912"
},
{
"href": "https://whois.arin.net/rest/poc/CHECS-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/3912"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse",
"administrative",
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "Dept, 3AT\nP.O. Box 30001\nLas Cruces\nNM\n88003\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"CHECS NOC"
],
[
"org",
{},
"text",
"CHECS"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-575-646-5999"
],
[
"tel",
{
"type": [
"work",
"fax"
]
},
"text",
"+1-575-646-8139"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2018-11-19T15:03:11-05:00"
},
{
"eventAction": "registration",
"eventDate": "2018-04-17T11:49:34-04:00"
}
],
"handle": "CHECSN-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CHECSN-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/3912"
},
{
"href": "https://whois.arin.net/rest/org/CHECSN-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/3912"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"CHECS"
],
[
"adr",
{
"label": "Box 30001 MSC 3AT\nLas Cruces\nNM\n88033\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-27T08:10:23-04:00"
},
{
"eventAction": "registration",
"eventDate": "2015-09-23T19:14:47-04:00"
}
],
"handle": "CHECS-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CHECS-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/3912"
},
{
"href": "https://whois.arin.net/rest/poc/CHECS-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/3912"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"noc",
"abuse",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "Dept, 3AT\nP.O. Box 30001\nLas Cruces\nNM\n88003\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"CHECS NOC"
],
[
"org",
{},
"text",
"CHECS"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-575-646-5999"
],
[
"tel",
{
"type": [
"work",
"fax"
]
},
"text",
"+1-575-646-8139"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-09-27T11:50:43-04:00"
},
{
"eventAction": "registration",
"eventDate": "1996-10-01T00:00:00-04:00"
}
],
"handle": "AS3912",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/3912",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/3912"
},
{
"href": "https://whois.arin.net/rest/asn/AS3912",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/3912"
}
],
"name": "CHECS",
"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/3912"
}
],
"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/3912"
}
],
"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": 3912,
"status": [
"active"
]
} Contact details of private individuals are redacted.