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

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '2a03:7380:40::/42'

% Abuse contact for '2a03:7380:40::/42' is 'abuse@triolan.com.ua'

inet6num:       2a03:7380:40::/42
netname:        TRIOLAN
country:        UA
admin-c:        OVY5-RIPE
admin-c:        YT1496-RIPE
tech-c:         OVY5-RIPE
tech-c:         YT1496-RIPE
status:         ASSIGNED
mnt-by:         TRIOLANMNT
mnt-by:         SALTOVKAMNT
mnt-domains:    TRIOLANMNT
mnt-domains:    SALTOVKAMNT
mnt-routes:     TRIOLANMNT
mnt-routes:     SALTOVKAMNT
created:        2016-10-19T13:19:10Z
last-modified:  2019-07-18T14:51:51Z
source:         RIPE

person:         Oleksii V Yaroshenko
address:        Prirechnaya 25a
address:        Kiev
address:        Ukraine
phone:          +38 097-437-27-17
nic-hdl:        OVY5-RIPE
mnt-by:         TRIOLANMNT
created:        2016-08-30T12:25:29Z
last-modified:  2019-06-11T09:12:58Z
source:         RIPE # Filtered

person:         Yevhen Tiraian
address:        Prirechnaya 25a
address:        Kyiv
address:        Ukraine
phone:          +380508420491
address:        saltovkamnt@gmail.com
nic-hdl:        YT1496-RIPE
mnt-by:         SALTOVKAMNT
created:        2016-10-12T08:30:14Z
last-modified:  2017-10-30T23:26:24Z
source:         RIPE

% Information related to '2a03:7380:40::/42AS13188'

route6:         2a03:7380:40::/42
descr:          Triolan, Kyiv
origin:         AS13188
mnt-by:         TRIOLANMNT
mnt-by:         SALTOVKAMNT
created:        2016-10-19T13:33:22Z
last-modified:  2019-07-22T08:17:37Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.114 (BUSA)

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