Whois & RDAP Lookup
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IP Geolocation RDAPIP Range51.161.37.0 - 51.161.37.255
HandleNET-51-161-37-0-1
NameOVH-CUST-281059684
TypeASSIGNMENT
HolderDmytro, Ahrefs Pte Ltd
Registered2023-07-17 08:19 UTC
Updated2023-07-17 08:19 UTC
RegistrantDmytro, Ahrefs Pte Ltd
Address16 RAFFLES QUAY #33-03, Singapore, , 048581, Singapore
Admin ContactNOC
OrganizationOVH
Email[email protected]
Phone+1-855-684-5463
Address800-1801 McGill College, Montreal, QC, H3A 2N4, Canada
Tech ContactNOC
OrganizationOVH
Email[email protected]
Phone+1-855-684-5463
Address800-1801 McGill College, Montreal, QC, H3A 2N4, Canada
Abuse Contact[email protected]
Abuse Phone+1-855-684-5463
Statusactive
Registry RDAPhttps://rdap.db.ripe.net
Raw WHOIS response
% This is the RIPE Database query service. % The objects are in RPSL format. % % The RIPE Database is subject to Terms and Conditions. % See https://docs.db.ripe.net/terms-conditions.html % Note: this output has been filtered. % To receive output for a database update, use the "-B" flag. % Information related to '51.161.0.0 - 51.162.127.255' % No abuse contact registered for 51.161.0.0 - 51.162.127.255 inetnum: 51.161.0.0 - 51.162.127.255 netname: NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK descr: IPv4 address block not managed by the RIPE NCC remarks: ------------------------------------------------------ remarks: remarks: For registration information, remarks: you can consult the following sources: remarks: remarks: IANA remarks: http://www.iana.org/assignments/ipv4-address-space remarks: http://www.iana.org/assignments/iana-ipv4-special-registry remarks: http://www.iana.org/assignments/ipv4-recovered-address-space remarks: remarks: AFRINIC (Africa) remarks: http://www.afrinic.net/ whois.afrinic.net remarks: remarks: APNIC (Asia Pacific) remarks: http://www.apnic.net/ whois.apnic.net remarks: remarks: ARIN (Northern America) remarks: http://www.arin.net/ whois.arin.net remarks: remarks: LACNIC (Latin America and the Carribean) remarks: http://www.lacnic.net/ whois.lacnic.net remarks: remarks: ------------------------------------------------------ country: EU # Country is really world wide admin-c: IANA1-RIPE tech-c: IANA1-RIPE status: ALLOCATED UNSPECIFIED mnt-by: RIPE-NCC-HM-MNT created: 2019-11-14T07:59:59Z last-modified: 2019-11-14T07:59:59Z source: RIPE role: Internet Assigned Numbers Authority address: see http://www.iana.org. admin-c: IANA1-RIPE tech-c: IANA1-RIPE nic-hdl: IANA1-RIPE remarks: For more information on IANA services remarks: go to IANA web site at http://www.iana.org. mnt-by: RIPE-NCC-MNT created: 1970-01-01T00:00:00Z last-modified: 2001-09-22T09:31:27Z source: RIPE # Filtered % This query was served by the RIPE Database Query Service version 1.123 (SHETLAND) % Query time: 741 msec % WHEN: Fri Jul 31 19:42:47 UTC 2026
Raw RDAP JSON (registry) https://rdap.db.ripe.net
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"length": 24,
"v4prefix": "51.161.37.0"
}
],
"endAddress": "51.161.37.255",
"entities": [
{
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2022-10-12T10:54:54-04:00"
},
{
"eventAction": "registration",
"eventDate": "2013-10-21T18:13:27-04:00"
}
],
"handle": "ABUSE3956-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE3956-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/51.161.37.31"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE3956-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/51.161.37.31"
}
],
"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 2023-10-12"
],
"title": "Unvalidated POC"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "800-1801 McGill College\nMontreal\nQC\nH3A 2N4\nCanada"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Abuse"
],
[
"org",
{},
"text",
"OVH Hosting Inc."
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-855-684-5463"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-30T08:40:48-04:00"
},
{
"eventAction": "registration",
"eventDate": "2011-03-03T13:59:52-05:00"
}
],
"handle": "NOC11876-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOC11876-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/51.161.37.31"
},
{
"href": "https://whois.arin.net/rest/poc/NOC11876-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/51.161.37.31"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "800-1801 McGill College\nMontreal\nQC\nH3A 2N4\nCanada"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"NOC"
],
[
"org",
{},
"text",
"OVH"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-855-684-5463"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-04T15:33:12-04:00"
},
{
"eventAction": "registration",
"eventDate": "2011-06-22T13:55:12-04:00"
}
],
"handle": "HO-2",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/HO-2",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/51.161.37.31"
},
{
"href": "https://whois.arin.net/rest/org/HO-2",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/51.161.37.31"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"OVH Hosting, Inc."
],
[
"adr",
{
"label": "800-1801 McGill College\nMontreal\nQC\nH3A 2N4\nCanada"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-07-17T04:19:16-04:00"
},
{
"eventAction": "registration",
"eventDate": "2023-07-17T04:19:16-04:00"
}
],
"handle": "C09828334",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/C09828334",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/51.161.37.31"
},
{
"href": "https://whois.arin.net/rest/customer/C09828334",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/51.161.37.31"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Dmytro, Ahrefs Pte Ltd"
],
[
"adr",
{
"label": "16 RAFFLES QUAY #33-03\nSingapore\n\n048581\nSingapore"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-07-17T04:19:16-04:00"
},
{
"eventAction": "registration",
"eventDate": "2023-07-17T04:19:16-04:00"
}
],
"handle": "NET-51-161-37-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/51.161.37.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/51.161.37.31"
},
{
"href": "https://whois.arin.net/rest/net/NET-51-161-37-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/51.161.37.31"
},
{
"href": "https://rdap.arin.net/registry/ip/51.161.0.0/16",
"rel": "up",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/51.161.37.31"
}
],
"name": "OVH-CUST-281059684",
"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/51.161.37.31"
}
],
"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/51.161.37.31"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-51-161-0-0-1",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "51.161.37.0",
"status": [
"active"
],
"type": "ASSIGNMENT"
}Frequently asked questions
What is WHOIS?
WHOIS is a public directory that answers "who is responsible for this?" for domains, IP ranges and ASNs. It lists registration dates, the registrar, nameservers and contacts.
What is RDAP, and how does it differ?
RDAP is the modern replacement for WHOIS. It returns the same records in a structured, consistent format. We query RDAP first and fall back to classic WHOIS text when a registry has not adopted it yet.
What is the difference between a registrar and a registrant?
The registrar is the company you register and manage a domain through, such as xTom or GoDaddy. The registrant is the person or organization that actually holds the domain.
What are nameservers?
Nameservers answer DNS questions for a domain and decide which IP addresses the name resolves to. They also show which DNS provider the domain uses.
What is DNSSEC?
DNSSEC adds cryptographic signatures to DNS answers so they cannot be quietly altered in transit. "Signed" means the domain has it enabled, "unsigned" means it does not.
Why is the contact information redacted?
Privacy laws such as GDPR require registrars to hide most personal details in public records. The abuse contact is usually still shown, so a domain or network can be reported when something goes wrong.