Whois & RDAP Lookup
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RDAPIP Range103.11.120.0 - 103.11.123.255
Handle103.11.120.0 - 103.11.123.255
NameM-SQUARE-JP
TypeALLOCATED PORTABLE
CountryJP
HolderM-SQUARE, Inc.
Registered2011-10-24 00:24 UTC
Updated2020-07-14 13:39 UTC
RegistrantM-SQUARE, Inc.
Email[email protected]
Phone+81-3-6779-4517
AddressHeights Junes 203, Mitsuzawa-Kamicho 7-8 Kanagawa-ku
Admin ContactM-SQUARE INC - network administrator
Email[email protected]
Phone+81-3-5291-1316
AddressHeights Junes 203, Mitsuzawa-Kamicho 7-8, Kanagawa-ku, Yokohama-shi, Kanagawa, Japan 221-0856
Tech ContactM-SQUARE INC - network administrator
Email[email protected]
Phone+81-3-5291-1316
AddressHeights Junes 203, Mitsuzawa-Kamicho 7-8, Kanagawa-ku, Yokohama-shi, Kanagawa, Japan 221-0856
Abuse Contact[email protected]
Statusactive
Registry RDAPhttps://rdap.apnic.net
Raw WHOIS response
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '103.11.120.0 - 103.11.120.255'
% Abuse contact for '103.11.120.0 - 103.11.120.255' is '[email protected]'
inetnum: 103.11.120.0 - 103.11.120.255
netname: Westeros-Communications
descr: NTT Communications Corporation
country: JP
admin-c: PF238-AP
tech-c: PF238-AP
abuse-c: PF238-AP
status: ALLOCATED NON-PORTABLE
remarks: For SPAM/ABUSE Issue:[email protected]
mnt-by: MAINT-M-SQUARE-JP
mnt-irt: IRT-M-SQUARE-JP
last-modified: 2026-04-16T01:37:41Z
geofeed: https://ariskisp.com/rfc8805.csv
source: APNIC
irt: IRT-M-SQUARE-JP
address: Heights Junes 203, Mitsuzawa-Kamicho 7-8, Kanagawa-ku, Yokohama-shi, Kanagawa, Japan 221-0856
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: MINA6-AP
tech-c: MINA6-AP
auth: # Filtered
remarks: [email protected] was validated on 2026-08-25
remarks: [email protected] was validated on 2026-08-25
mnt-by: MAINT-M-SQUARE-JP
last-modified: 2026-08-25T13:52:38Z
source: APNIC
person: Pax Fussell
address: 350 NORTHERN BLVD STE 324 -1331 ALBANY NY 12204-1000
country: US
phone: +1-518-512-9230
e-mail: [email protected]
nic-hdl: PF238-AP
mnt-by: MAINT-DIL-JP
last-modified: 2025-04-02T06:07:59Z
source: APNIC
% Information related to '103.11.120.0/24AS2914'
route: 103.11.120.0/24
origin: AS2914
descr: M-SQUARE, Inc.
Heights Junes 203, Mitsuzawa-Kamicho 7-8 Kanagawa-ku
mnt-by: MAINT-M-SQUARE-JP
last-modified: 2026-04-16T01:44:38Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-JP1)
% Query time: 227 msec
% WHEN: Fri Sep 04 15:15:12 UTC 2026Raw RDAP JSON (registry) https://rdap.apnic.net
{
"cidr0_cidrs": [
{
"length": 22,
"v4prefix": "103.11.120.0"
}
],
"country": "JP",
"endAddress": "103.11.123.255",
"entities": [
{
"events": [
{
"eventAction": "registration",
"eventDate": "2017-08-08T23:28:15Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-09-05T02:15:54Z"
}
],
"handle": "ORG-MI1-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/ORG-MI1-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/103.11.120.0/22"
}
],
"objectClassName": "entity",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"M-SQUARE, Inc."
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "Heights Junes 203, Mitsuzawa-Kamicho 7-8 Kanagawa-ku"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+81-3-6779-4517"
],
[
"tel",
{
"type": "fax"
},
"text",
"+81-3-6779-4517"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2011-10-24T00:10:56Z"
},
{
"eventAction": "last changed",
"eventDate": "2013-06-18T04:40:03Z"
}
],
"handle": "MINA6-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/MINA6-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/103.11.120.0/22"
}
],
"objectClassName": "entity",
"roles": [
"technical",
"administrative"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"M-SQUARE INC - network administrator"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Heights Junes 203, Mitsuzawa-Kamicho 7-8, Kanagawa-ku, Yokohama-shi, Kanagawa, Japan 221-0856"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+81-3-5291-1316"
],
[
"tel",
{
"type": "fax"
},
"text",
"+81-3-5291-1316"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2011-10-24T00:10:59Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-08-25T13:52:38Z"
}
],
"handle": "IRT-M-SQUARE-JP",
"links": [
{
"href": "https://rdap.apnic.net/entity/IRT-M-SQUARE-JP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/103.11.120.0/22"
}
],
"objectClassName": "entity",
"remarks": [
{
"description": [
"[email protected] was validated on 2026-08-25",
"[email protected] was validated on 2026-08-25"
],
"title": "remarks"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-M-SQUARE-JP"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Heights Junes 203, Mitsuzawa-Kamicho 7-8, Kanagawa-ku, Yokohama-shi, Kanagawa, Japan 221-0856"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2011-10-24T00:24:52Z"
},
{
"eventAction": "last changed",
"eventDate": "2020-07-14T13:39:47Z"
}
],
"handle": "103.11.120.0 - 103.11.123.255",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.apnic.net/ip/103.11.120.0/22",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/103.11.120.0/22"
}
],
"name": "M-SQUARE-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/103.11.120.0/22"
}
],
"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/103.11.120.0/22"
}
],
"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": [
"Heights Junes 203, Mitsuzawa-Kamicho 7-8 Kanagawa-ku"
],
"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": "103.11.120.0",
"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.