% APNIC found the following authoritative answer from: whois.apnic.net

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

% Information related to '103.121.208.0 - 103.121.208.255'

% Abuse contact for '103.121.208.0 - 103.121.208.255' is 'abuse@xtom.com'

inetnum:        103.121.208.0 - 103.121.208.255
netname:        XTOM-NIPPON-IPV4-01
descr:          xTom
country:        JP
geoloc:         35.6617714 139.8042591
admin-c:        XNN2-AP
tech-c:         XNN2-AP
abuse-c:        AX193-AP
status:         ASSIGNED NON-PORTABLE
mnt-by:         MAINT-VH-AP
mnt-irt:        IRT-XTOM-NIPPON
last-modified:  2021-03-30T14:44:03Z
source:         APNIC

irt:            IRT-XTOM-NIPPON
address:        1-26-1 Shinmachi Nishi-ku, Osaka, 550-0013
address:        Japan
e-mail:         noc@xtom.com
abuse-mailbox:  abuse@xtom.com
admin-c:        XNN2-AP
tech-c:         XNN2-AP
auth:           # Filtered
remarks:        noc@xtom.com was validated on 2025-07-09
remarks:        abuse@xtom.com was validated on 2026-01-13
mnt-by:         MAINT-XTOMGMBH-AP
last-modified:  2026-01-13T13:25:21Z
source:         APNIC

role:           ABUSE XTOMNIPPON
country:        ZZ
address:        1-26-1 Shinmachi Nishi-ku, Osaka, 550-0013
address:        Japan
phone:          +000000000
e-mail:         noc@xtom.com
admin-c:        XNN2-AP
tech-c:         XNN2-AP
nic-hdl:        AX193-AP
remarks:        Generated from irt object IRT-XTOM-NIPPON
remarks:        noc@xtom.com was validated on 2025-07-09
remarks:        abuse@xtom.com was validated on 2026-01-13
abuse-mailbox:  abuse@xtom.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-01-13T13:25:47Z
source:         APNIC

role:           xTom Nippon NOC
address:        1-26-1 Shinmachi Nishi-ku, Osaka, 550-0013
country:        JP
phone:          +81-3-45777666
e-mail:         noc@xtom.com
admin-c:        XNN1-AP
tech-c:         XNN1-AP
nic-hdl:        XNN2-AP
mnt-by:         MAINT-XTOMGMBH-AP
last-modified:  2020-09-20T18:38:28Z
source:         APNIC

% Information related to '103.121.208.0/24AS23959'

route:          103.121.208.0/24
origin:         AS23959
descr:          Virtual Hosting, Inc.
                2711 Centerville Road, Suite 400
mnt-by:         MAINT-VH-AP
last-modified:  2022-08-05T08:07:53Z
source:         APNIC

% Information related to '103.121.208.0/24AS43959'

route:          103.121.208.0/24
origin:         AS43959
descr:          Virtual Hosting, Inc.
                2711 Centerville Road, Suite 400
mnt-by:         MAINT-VH-AP
last-modified:  2020-09-21T04:09:53Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-AU4)