Organization
Curium Technologies
CMTC
Registered
Feb 14, 2022
4 years ago
IPv4 Prefixes
1
1,024 addresses
IPv6 Prefixes
0
BGP Neighbours
1
1 upstream/peer · 0 downstream
Registration
AS Number AS400451 AS Name CMTC Organization Curium Technologies Organization ID ANL-351 Address 1536 St. Clair Ave, S12, Cleveland, OH, 44114, United States Country United States (US) Registry ARIN Allocated Feb 14, 2022 Record Created Feb 14, 2022 Last Updated Jul 29, 2026 Status
active
WHOIS Server whois.arin.net AS Description CMTC - Curium Technologies, US Remarks https://cm.tc, Standard NOC hours are 8:00 AM to 7:00 PM EST Abuse Email [email protected] Abuse Phone +1-855-275-2682 IPv4 Prefixes
1 prefix · 1,024 addresses Routing data as of 2026-10-17 00:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 128.254.156.0/22 | 128.254.156.0 – 128.254.159.255 | 1,024 |
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 AS21738 ROZINT - Rozint 261 333 0
Raw RDAP Response
{
"endAutnum": 400451,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-02-23T10:46:36-05:00"
},
{
"eventAction": "registration",
"eventDate": "2022-02-11T19:25:52-05:00"
}
],
"handle": "ABUSE8378-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE8378-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/400451"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE8378-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/400451"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Contact [email protected] for all policy abuse issues.",
"https://cm.tc"
],
"title": "Registration Comments"
}
],
"roles": [
"abuse",
"noc",
"dns",
"technical",
"administrative",
"routing"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1536 St. Clair Ave, S12\nCleveland\nOH\n44114\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Abuse"
],
[
"org",
{},
"text",
"Curium Technologies"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-855-275-2682"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-07-09T07:51:37-04:00"
},
{
"eventAction": "registration",
"eventDate": "2021-02-10T17:08:16-05:00"
}
],
"handle": "ANL-351",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ANL-351",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/400451"
},
{
"href": "https://whois.arin.net/rest/org/ANL-351",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/400451"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Curium Technologies"
],
[
"adr",
{
"label": "1536 St. Clair Ave, S12\nCleveland\nOH\n44114\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-29T13:39:01-04:00"
},
{
"eventAction": "registration",
"eventDate": "2022-02-14T11:10:56-05:00"
}
],
"handle": "AS400451",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/400451",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/400451"
},
{
"href": "https://whois.arin.net/rest/asn/AS400451",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/400451"
}
],
"name": "CMTC",
"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/400451"
}
],
"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/400451"
}
],
"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"
],
"remarks": [
{
"description": [
"https://cm.tc\r",
"Standard NOC hours are 8:00 AM to 7:00 PM EST"
],
"title": "Registration Comments"
}
],
"startAutnum": 400451,
"status": [
"active"
]
} Contact details of private individuals are redacted.