% 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://apps.db.ripe.net/docs/HTML-Terms-And-Conditions

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

% Information related to '77.75.145.64 - 77.75.145.95'

% Abuse contact for '77.75.145.64 - 77.75.145.95' is 'abuse@dataline.ua'

inetnum:        77.75.145.64 - 77.75.145.95
netname:        FOP-BugorOP
country:        UA
admin-c:        DTLN-RIPE
tech-c:         DTLN-RIPE
status:         ASSIGNED PA
mnt-by:         DL-MNT
mnt-by:         FREEZ-MNT
created:        2019-04-09T13:07:44Z
last-modified:  2023-06-26T13:26:49Z
source:         RIPE

role:           Dataline NOC
address:        Dataline LLC
address:        50 Sosnova Str.
address:        Kyiv 03131
address:        Ukraine
remarks:        Tech Support phone:
phone:          +380443736868
abuse-mailbox:  abuse@dataline.ua
remarks:        ****************************************
remarks:        Contact addresses:
remarks:        Routing and peering: peering@dataline.ua
remarks:        Customer support: noc@dataline.ua
remarks:        Spam: abuse@dataline.ua
remarks:        ****************************************
admin-c:        AS-RIPE
tech-c:         AK18440-RIPE
tech-c:         FREZ1-RIPE
nic-hdl:        DTLN-RIPE
mnt-by:         DL-MNT
created:        2008-06-11T12:46:36Z
last-modified:  2018-11-22T08:43:19Z
source:         RIPE # Filtered

% Information related to '77.75.144.0/21AS35297'

route:          77.75.144.0/21
origin:         AS35297
mnt-by:         DL-MNT
created:        2017-06-06T09:59:37Z
last-modified:  2017-06-06T09:59:37Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.111 (ABERDEEN)

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