Whois

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to '210.248.0.0 - 210.255.255.255'

% Abuse contact for '210.248.0.0 - 210.255.255.255' is '[email protected]'

inetnum:        210.248.0.0 - 210.255.255.255
netname:        JPNIC-NET-JP
descr:          Japan Network Information Center
country:        JP
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
abuse-c:        AJ382-AP
status:         ALLOCATED PORTABLE
remarks:        JPNIC Allocation Block
remarks:        Authoritative information regarding assignments and
remarks:        allocations made from within this block can also be
remarks:        queried at whois.nic.ad.jp. To obtain an English
remarks:        output query whois -h whois.nic.ad.jp x.x.x.x/e
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
last-modified:  2020-07-23T04:25:29Z
source:         APNIC

% Information related to '210.254.128.0 - 210.254.255.255'

inetnum:        210.254.128.0 - 210.254.255.255
netname:        OCN-CIDR-BLK-JP
descr:          NTT COMMUNICATIONS CORPORATION
remarks:        Email address for spam or abuse complaints : [email protected]
country:        JP
admin-c:        JP00009614
tech-c:         JP00009427
last-modified:  2021-06-29T19:29:02Z
remarks:        This information has been partially mirrored by APNIC from
remarks:        JPNIC. To obtain more specific information, please use the
remarks:        JPNIC WHOIS Gateway at
remarks:        http://www.nic.ad.jp/en/db/whois/en-gateway.html or
remarks:        whois.nic.ad.jp for WHOIS client. (The WHOIS client
remarks:        defaults to Japanese output, use the /e switch for English
remarks:        output)
source:         JPNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)