% 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 '91.197.48.0 - 91.197.51.255'

% Abuse contact for '91.197.48.0 - 91.197.51.255' is 'noc@antidot.ua'

inetnum:        91.197.48.0 - 91.197.51.255
netname:        ANTIDOT-NET
country:        UA
org:            ORG-MT20-RIPE
admin-c:        ANCC2-RIPE
tech-c:         ANCC2-RIPE
status:         ASSIGNED PI
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-ANTIDOT
mnt-routes:     MNT-ANTIDOT
mnt-domains:    MNT-ANTIDOT
created:        2007-07-26T11:19:54Z
last-modified:  2023-08-10T07:44:49Z
source:         RIPE # Filtered
sponsoring-org: ORG-LUL21-RIPE

organisation:   ORG-MT20-RIPE
org-name:       "Pryama Mova" Tov.
country:        UA
org-type:       OTHER
address:        Ukraine, Kiev, Kotsyubinskogo 4-B, of.17/1
phone:          +380 44 2274090
phone:          +380 44 2274090
abuse-c:        AC30249-RIPE
admin-c:        ANCC2-RIPE
tech-c:         ANCC2-RIPE
mnt-ref:        MNT-ANTIDOT
mnt-by:         MNT-ANTIDOT
created:        2007-07-14T19:37:53Z
last-modified:  2022-12-01T16:38:22Z
source:         RIPE # Filtered

role:           Antidot Network Coordination Center
address:        Kotsyubinskogo 4-B, of.17/1
address:        Kiev, Ukraine
phone:          +380 44 2274090
org:            ORG-MT20-RIPE
admin-c:        ABT-RIPE
tech-c:         ABT-RIPE
nic-hdl:        ANCC2-RIPE
abuse-mailbox:  abuse@antidot.ua
mnt-by:         MNT-ANTIDOT
created:        2017-11-30T17:10:46Z
last-modified:  2017-11-30T17:10:46Z
source:         RIPE # Filtered

% Information related to '91.197.48.0/24AS43418'

route:          91.197.48.0/24
descr:          ANTIDOT Route object
origin:         AS43418
mnt-by:         MNT-ANTIDOT
created:        2010-09-28T15:11:42Z
last-modified:  2010-09-28T15:11:42Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.112.1 (SHETLAND)

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