% 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 'MAINT-ID-GENID'

mntner:         MAINT-ID-GENID
upd-to:         gopal@gen.net.id
auth:           # Filtered
descr:          PT. Generasi Indonesia Digital
descr:          Internet Service Provider
descr:          Jakarta - 12710
admin-c:        GU12-AP
tech-c:         GU12-AP
referral-by:    MNT-APJII-ID
mnt-by:         MAINT-ID-GENID
remarks:        spam and abuse please send to abuse@gen.net.id
last-modified:  2021-07-30T04:10:05Z
source:         APNIC

person:         Gopal Utiarrachman
nic-hdl:        GU12-AP
e-mail:         gopal@gen.net.id
address:        Jl.Kuningan Barat No.8,Gedung Elektrindo lantai 10.
address:        Jakarta 12710
phone:          +62-21-5266222
fax-no:         +62-21-52963327
country:        ID
mnt-by:         MAINT-ID-GENID
last-modified:  2008-09-04T07:29:22Z
source:         APNIC

% Information related to 'MAINT-ID-GENID'

mntner:         MAINT-ID-GENID
upd-to:         noc@gen.id
descr:          PT. Generasi Indonesia Digital
descr:          Internet Service Provider
descr:          Jakarta - 12710
admin-c:        GH4-AP
tech-c:         GH4-AP
referral-by:    MNT-APJII-ID
auth:           # Filtered
mnt-by:         MAINT-ID-GENID
remarks:        spam and abuse please send to abuse@gen.id
last-modified:  2021-08-21T17:27:50Z
source:         IDNIC

person:         Guntur Hippy
nic-hdl:        GH4-AP
e-mail:         noc@gen.net.id
address:        Jl.Kuningan Barat No.8,Gedung Cyber
address:        Jakarta 12710
phone:          +62-817777072
fax-no:         +62-21-52963327
country:        ID
mnt-by:         MAINT-ID-GENID
last-modified:  2021-08-16T17:35:39Z
source:         IDNIC

% This query was served by the APNIC Whois Service version 1.88.25 (WHOIS-AU3)

Search for
IP address lookups			Miscellaneous queries
-l	1st level less specific		-i	Inverse attributes	None admin-c admin-c,tech-c,zone-c author cross-mnt cross-nfy local-as mbrs-by-ref member-of mnt-by mnt-lower mnt-nfy mnt-routes notify nserver origin person referral-by rev-srv sub-dom tech-c upd-to zone-c
-L	All less specific		-T	Object types	All as-block as-set aut-num domain filter-set inet-rtr inet6num inetnum irt key-cert mntner peering-set person role route route-set rtr-set
-m	1st level more specific
-M	All more specific		Query hints Include "AS" in front of an AS number. Example: AS4808 Include "-t" (template only) or "-v" (template and description) in front of an object name to view the template Example: -t inetnum
-x	Exact match only
-d	Associated reverse domain