% 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 '5.153.128.0 - 5.153.159.255'

% Abuse contact for '5.153.128.0 - 5.153.159.255' is 'registry@donbass.net'

inetnum:        5.153.128.0 - 5.153.159.255
netname:        D-NET
org:            ORG-SF2-RIPE
country:        UA
admin-c:        AO254-RIPE
tech-c:         DIPT1-RIPE
status:         ASSIGNED PA
mnt-by:         AS3261-MNT
created:        2022-10-06T12:14:19Z
last-modified:  2022-10-06T12:14:19Z
source:         RIPE

organisation:   ORG-SF2-RIPE
org-name:       LLC "FTICOM"
country:        UA
org-type:       LIR
address:        street Belyaeva 4
address:        49000
address:        Dnepr
address:        UKRAINE
phone:          +380(629)530095
phone:          +380(50)4098040
fax-no:         +380(629)530095
admin-c:        FR8614-RIPE
tech-c:         FR8614-RIPE
abuse-c:        AR17420-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        AS3261-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         AS3261-MNT
created:        2004-04-17T12:08:55Z
last-modified:  2020-12-16T12:37:30Z
source:         RIPE # Filtered

role:           FTICOM Role
address:        LLC FTICOM
address:        street Belyaeva 4
address:        49000
address:        Dnepr
address:        UKRAINE
phone:          +380(629)530095
phone:          +380(50)4098040
remarks:        **************************************
remarks:        Contact addresses:
remarks:        routing & peering - noc@dipt.ua
remarks:        spam & security - abuse@dipt.ua
remarks:        mail - postmaster@dipt.ua
remarks:        info - http://www.dipt.ua
remarks:        **************************************
nic-hdl:        DIPT1-RIPE
mnt-by:         AS3261-MNT
created:        2016-11-29T15:28:37Z
last-modified:  2018-08-08T10:51:05Z
source:         RIPE # Filtered

person:         FTICOM CEO
address:        LLC FTICOM
address:        street Belyaeva 4
address:        49000
address:        Dnepr
address:        UKRAINE
phone:          +380(50)4098040
nic-hdl:        AO254-RIPE
mnt-by:         AS3261-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2018-08-08T10:55:32Z
source:         RIPE # Filtered

% Information related to '5.153.131.0/24AS3261'

route:          5.153.131.0/24
origin:         AS3261
mnt-by:         AS3261-MNT
created:        2022-10-11T07:44:28Z
last-modified:  2022-10-11T07:44:28Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.112 (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