Whois & RDAP Lookup
V.PS Cloud KVM VPS for developers KVM VPS · 11 PoPs · 99.9% SLA Simple VPS, premium network · Pick a PoP, deploy in seconds 11 PoPs · APAC, Europe, North America Tier 1 upstreams Premium network · Low-latency routes Free 24×7 support €6.95/mo Deploy a serverDeploy23.81.40.0/21
RDAPIP Range23.81.40.0 - 23.81.47.255
Handle23.81.40.0 - 23.81.47.255
NameLEASEWEB-JP
TypeALLOCATED PORTABLE
CountryJP
HolderLeaseweb Japan K.K.
Registered2022-06-27 06:10 UTC
Updated2022-06-27 06:10 UTC
RegistrantLeaseweb Japan K.K.
Email[email protected]
Phone+31(0)20-3165168
Address201 Chambre de Nishi Azabu,, 4-14-14, Nishiazabu
Admin ContactLeaseweb Japan KK administrator
Email[email protected]
Phone+31(0)20-3165168
Address201 Chambre de Nishi Azabu,, 4-14-14, Nishiazabu, Minato Ku Tokyo-To 106-0031
Tech ContactLeaseweb Japan KK administrator
Email[email protected]
Phone+31(0)20-3165168
Address201 Chambre de Nishi Azabu,, 4-14-14, Nishiazabu, Minato Ku Tokyo-To 106-0031
Abuse Contact[email protected]
Statusactive
Registry RDAPhttps://rdap.arin.net
Raw RDAP JSON (registry) https://rdap.arin.net
{
"cidr0_cidrs": [
{
"length": 21,
"v4prefix": "23.81.40.0"
}
],
"country": "JP",
"endAddress": "23.81.47.255",
"entities": [
{
"events": [
{
"eventAction": "registration",
"eventDate": "2020-02-15T12:58:54Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-09-05T02:18:07Z"
}
],
"handle": "ORG-LJK1-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/ORG-LJK1-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/23.81.40.0/21"
}
],
"objectClassName": "entity",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Leaseweb Japan K.K."
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "201 Chambre de Nishi Azabu,\n4-14-14, Nishiazabu"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+31(0)20-3165168"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2020-03-13T00:37:25Z"
},
{
"eventAction": "last changed",
"eventDate": "2020-03-13T00:37:25Z"
}
],
"handle": "LJKA1-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/LJKA1-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/23.81.40.0/21"
}
],
"objectClassName": "entity",
"roles": [
"technical",
"administrative"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Leaseweb Japan KK administrator"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "201 Chambre de Nishi Azabu,, 4-14-14, Nishiazabu, Minato Ku Tokyo-To 106-0031"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+31(0)20-3165168"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2020-03-13T00:37:26Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-07-21T13:25:04Z"
}
],
"handle": "IRT-LEASEWEB-JP",
"links": [
{
"href": "https://rdap.apnic.net/entity/IRT-LEASEWEB-JP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/23.81.40.0/21"
}
],
"objectClassName": "entity",
"remarks": [
{
"description": [
"[email protected] was validated on 2026-07-21"
],
"title": "remarks"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-LEASEWEB-JP"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "201 Chambre de Nishi Azabu,, 4-14-14, Nishiazabu, Minato Ku Tokyo-To 106-0031"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2022-06-27T06:10:54Z"
},
{
"eventAction": "last changed",
"eventDate": "2022-06-27T06:10:54Z"
}
],
"handle": "23.81.40.0 - 23.81.47.255",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.apnic.net/ip/23.81.40.0/21",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/23.81.40.0/21"
}
],
"name": "LEASEWEB-JP",
"notices": [
{
"description": [
"Objects returned came from source",
"APNIC"
],
"title": "Source"
},
{
"description": [
"This is the APNIC WHOIS Database query service. The objects are in RDAP format."
],
"links": [
{
"href": "http://www.apnic.net/db/dbcopyright.html",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.apnic.net/ip/23.81.40.0/21"
}
],
"title": "Terms and Conditions"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.apnic.net/ip/23.81.40.0/21"
}
],
"title": "Whois Inaccuracy Reporting"
}
],
"objectClassName": "ip network",
"port43": "whois.apnic.net",
"rdapConformance": [
"history_version_0",
"nro_rdap_profile_0",
"cidr0",
"rdap_level_0"
],
"remarks": [
{
"description": [
"Leaseweb Japan K.K."
],
"title": "description"
},
{
"description": [
"--------------------------------------------------------",
"To report network abuse, please contact mnt-irt",
"For troubleshooting, please contact tech-c and admin-c",
"Report invalid contact via www.apnic.net/invalidcontact",
"--------------------------------------------------------"
],
"title": "remarks"
}
],
"startAddress": "23.81.40.0",
"status": [
"active"
],
"type": "ALLOCATED PORTABLE"
}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.