Whois

"httn.jp"のWHOIS結果[whois.jprs.jp]
[ 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'.                 ]
No match!!

With JPRS WHOIS, you can query the following domain name information
sponsored by JPRS.
    - All of registered JP domain name
    - gTLD domain name of which sponsoring registrar is JPRS
Detail: https://jprs.jp/about/dom-search/jprs-whois/ (only in Japanese)

For IP address information, please refer to the following WHOIS servers:
    - JPNIC WHOIS (whois.nic.ad.jp)
    - APNIC WHOIS (whois.apnic.net)
    - ARIN WHOIS (whois.arin.net)
    - RIPE WHOIS (whois.ripe.net)
    - LACNIC WHOIS (whois.lacnic.net)
    - AfriNIC WHOIS (whois.afrinic.net)