Domain: OPEN-SOURCE.CO.JP (336,123 similar domains)
Query Time: 2 Dec 2025 - 1:55 AM UTC [1 HR BACK] [REFRESH]
Registered: 12th December 2005 [19 years, 11 months, 20 days back]
Updated: 27th June 2025 [5 months, 5 days back]
NAME SERVERS
ns1.dns.ne.jp
ns2.dns.ne.jp
REGISTRANT CONTACT
Company: Open Source Inc. (6 domains)
ADMINISTRATIVE CONTACT
Name: Keisuke Mori (71 domains)
Company: Open Source Inc. (6 domains)
Email: [email protected]
Phone: 011-204-6363
TECHNICAL CONTACT
Name: Keisuke Mori (71 domains)
Company: Open Source Inc. (6 domains)
Email: [email protected]
Phone: 011-204-6363
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Short URL: whoxy.com/open-source.co.jp
Permalink: https://www.whoxy.com/open-source.co.jp
--------------------------------------------------
Generator: x1.autowhois.com
Registry WHOIS: whois.jprs.jp
Query Time: Tue, 02 Dec 2025 01:55:25 +0000
--------------------------------------------------
[ JPRS database provides information on network administration. Its use is ]
[ restricted to network administration purposes. For further information, ]
[ use 'whois -h whois.jprs.jp help'. To suppress Japanese output, add'/e' ]
[ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'. ]
Domain Information:
a. [Domain Name] OPEN-SOURCE.CO.JP
g. [Organization] Open Source Inc.
l. [Organization Type] corporation
m. [Administrative Contact] KM65434JP
n. [Technical Contact] KM65434JP
p. [Name Server] ns1.dns.ne.jp
p. [Name Server] ns2.dns.ne.jp
s. [Signing Key]
[State] Connected (2025/12/31)
[Registered Date] 2005/12/12
[Connected Date] 2005/12/12
[Last Update] 2025/06/27 16:18:05 (JST)
------------------------------
Administrative Contact Details
------------------------------
Contact Information:
a. [JPNIC Handle] KM65434JP
c. [Last, First] Mori, Keisuke
d. [E-Mail] [email protected]
g. [Organization] Open Source Inc.
l. [Division] Tech Division
o. [TEL] 011-204-6363
y. [Reply Mail] [email protected]
[Last Update] 2022/01/03 14:19:12 (JST)
[email protected]
------------------------------
Technical Contact Details
------------------------------
Contact Information:
a. [JPNIC Handle] KM65434JP
c. [Last, First] Mori, Keisuke
d. [E-Mail] [email protected]
g. [Organization] Open Source Inc.
l. [Division] Tech Division
o. [TEL] 011-204-6363
y. [Reply Mail] [email protected]
[Last Update] 2022/01/03 14:19:12 (JST)
[email protected]{
"status": 1,
"domain_name": "open-source.co.jp",
"query_time": "2025-12-02 01:55:25",
"domain_registered": "yes",
"create_date": "2005-12-12",
"update_date": "2025-06-27",
"registrant_contact": {
"company_name": "Open Source Inc."
},
"administrative_contact": {
"full_name": "Keisuke Mori",
"company_name": "Open Source Inc.",
"email_address": "[email protected]",
"phone_number": "011-204-6363"
},
"technical_contact": {
"full_name": "Keisuke Mori",
"company_name": "Open Source Inc.",
"email_address": "[email protected]",
"phone_number": "011-204-6363"
},
"name_servers": [
"ns1.dns.ne.jp",
"ns2.dns.ne.jp"
],
"raw_whois": "--------------------------------------------------\nGenerator: x1.autowhois.com\nRegistry WHOIS: whois.jprs.jp\nQuery Time: Tue, 02 Dec 2025 01:55:25 +0000\n--------------------------------------------------\n\n[ JPRS database provides information on network administration. Its use is ]\r\n[ restricted to network administration purposes. For further information, ]\r\n[ use 'whois -h whois.jprs.jp help'. To suppress Japanese output, add'/e' ]\r\n[ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'. ]\r\nDomain Information:\r\na. [Domain Name] OPEN-SOURCE.CO.JP\r\ng. [Organization] Open Source Inc.\r\nl. [Organization Type] corporation\r\nm. [Administrative Contact] KM65434JP\r\nn. [Technical Contact] KM65434JP\r\np. [Name Server] ns1.dns.ne.jp\r\np. [Name Server] ns2.dns.ne.jp\r\ns. [Signing Key] \r\n[State] Connected (2025/12/31)\r\n[Registered Date] 2005/12/12\r\n[Connected Date] 2005/12/12\r\n[Last Update] 2025/06/27 16:18:05 (JST)\n\n------------------------------\nAdministrative Contact Details\n------------------------------\n\nContact Information:\r\na. [JPNIC Handle] KM65434JP\r\nc. [Last, First] Mori, Keisuke\r\nd. [E-Mail] [email protected]\r\ng. [Organization] Open Source Inc.\r\nl. [Division] Tech Division\r\no. [TEL] 011-204-6363\r\ny. [Reply Mail] [email protected]\r\n[Last Update] 2022/01/03 14:19:12 (JST)\r\n [email protected]\n\n------------------------------\nTechnical Contact Details\n------------------------------\n\nContact Information:\r\na. [JPNIC Handle] KM65434JP\r\nc. [Last, First] Mori, Keisuke\r\nd. [E-Mail] [email protected]\r\ng. [Organization] Open Source Inc.\r\nl. [Division] Tech Division\r\no. [TEL] 011-204-6363\r\ny. [Reply Mail] [email protected]\r\n[Last Update] 2022/01/03 14:19:12 (JST)\r\n [email protected]"
}<?xml version="1.0" encoding="UTF-8"?>
<root>
<status>1</status>
<domain_name>open-source.co.jp</domain_name>
<query_time>2025-12-02 01:55:25</query_time>
<domain_registered>yes</domain_registered>
<create_date>2005-12-12</create_date>
<update_date>2025-06-27</update_date>
<registrant_contact>
<company_name>Open Source Inc.</company_name>
</registrant_contact>
<administrative_contact>
<full_name>Keisuke Mori</full_name>
<company_name>Open Source Inc.</company_name>
<email_address>[email protected]</email_address>
<phone_number>011-204-6363</phone_number>
</administrative_contact>
<technical_contact>
<full_name>Keisuke Mori</full_name>
<company_name>Open Source Inc.</company_name>
<email_address>[email protected]</email_address>
<phone_number>011-204-6363</phone_number>
</technical_contact>
<name_servers>
<value>ns1.dns.ne.jp</value>
<value>ns2.dns.ne.jp</value>
</name_servers>
<raw_whois>--------------------------------------------------
Generator: x1.autowhois.com
Registry WHOIS: whois.jprs.jp
Query Time: Tue, 02 Dec 2025 01:55:25 +0000
--------------------------------------------------
[ JPRS database provides information on network administration. Its use is ]
[ restricted to network administration purposes. For further information, ]
[ use 'whois -h whois.jprs.jp help'. To suppress Japanese output, add'/e' ]
[ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'. ]
Domain Information:
a. [Domain Name] OPEN-SOURCE.CO.JP
g. [Organization] Open Source Inc.
l. [Organization Type] corporation
m. [Administrative Contact] KM65434JP
n. [Technical Contact] KM65434JP
p. [Name Server] ns1.dns.ne.jp
p. [Name Server] ns2.dns.ne.jp
s. [Signing Key]
[State] Connected (2025/12/31)
[Registered Date] 2005/12/12
[Connected Date] 2005/12/12
[Last Update] 2025/06/27 16:18:05 (JST)
------------------------------
Administrative Contact Details
------------------------------
Contact Information:
a. [JPNIC Handle] KM65434JP
c. [Last, First] Mori, Keisuke
d. [E-Mail] [email protected]
g. [Organization] Open Source Inc.
l. [Division] Tech Division
o. [TEL] 011-204-6363
y. [Reply Mail] [email protected]
[Last Update] 2022/01/03 14:19:12 (JST)
[email protected]
------------------------------
Technical Contact Details
------------------------------
Contact Information:
a. [JPNIC Handle] KM65434JP
c. [Last, First] Mori, Keisuke
d. [E-Mail] [email protected]
g. [Organization] Open Source Inc.
l. [Division] Tech Division
o. [TEL] 011-204-6363
y. [Reply Mail] [email protected]
[Last Update] 2022/01/03 14:19:12 (JST)
[email protected]</raw_whois>
</root>
Whois Lookup API
You can fetch the above results using our Whois Lookup API.
https://api.whoxy.com/?key=xxxxx&whois=open-source.co.jp
Whois API digs into WHOIS registry referral chains until the correct WHOIS servers are found, for the most complete WHOIS data.
Our WHOIS parser converts WHOIS data into well-structured fields (XML & JSON), which can easily be read by your application.
Whois API supports a total of 2026 Domain Extensions (gTLDs, ccTLDs & new gTLDs), ensuring all domains are supported.
Sample Output: JSON Schema • XML Schema • JSON Live Results • XML Live Results
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Who owned open-source.co.jp in the past? (2 records)
7 DEC 2024
Company: Open Source Inc. (6 domains)
Nameservers: ns01.open-serve.net, ns02.open-serve.com
2 DEC 2025
Company: Open Source Inc. (6 domains)
Nameservers: ns1.dns.ne.jp, ns2.dns.ne.jp UPDATED
Whois History API returns all the historical WHOIS records of a domain name. For more details, please visit https://www.whoxy.com/whois-history/