% 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 '91.196.156.0 - 91.196.159.255'

% Abuse contact for '91.196.156.0 - 91.196.159.255' is 'noc@rnc.com.ua'

inetnum:        91.196.156.0 - 91.196.159.255
netname:        RNC
country:        UA
org:            ORG-RNC1-RIPE
admin-c:        RLNC1-RIPE
tech-c:         RLNC1-RIPE
status:         ASSIGNED PI
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         RNC-MNT
mnt-routes:     RNC-MNT
mnt-domains:    RNC-MNT
created:        2007-06-13T14:00:19Z
last-modified:  2016-04-14T11:06:30Z
source:         RIPE
sponsoring-org: ORG-EL10-RIPE

organisation:   ORG-RNC1-RIPE
org-name:       RNC Ltd.
country:        UA
org-type:       OTHER
address:        1, 40-let Oktiabria ave.
address:        Kiev, Ukraine
phone:          +38 044 4938816
fax-no:         +38 044 4938816
admin-c:        VK1381-RIPE
tech-c:         AM19520-RIPE
abuse-c:        RLNC1-RIPE
mnt-ref:        RNC-MNT
mnt-by:         RNC-MNT
created:        2007-06-11T12:31:27Z
last-modified:  2022-12-01T16:45:35Z
source:         RIPE # Filtered

role:           RNC Ltd. Network Coordination Center
address:        1, 40-let Oktiabria
address:        03127 Kiev, Ukraine
admin-c:        VK1381-RIPE
tech-c:         VK1381-RIPE
tech-c:         MK10499-RIPE
abuse-mailbox:  noc@rnc.com.ua
nic-hdl:        RLNC1-RIPE
mnt-by:         RNC-MNT
created:        2011-02-22T10:38:18Z
last-modified:  2014-07-22T11:47:26Z
source:         RIPE # Filtered

% Information related to '91.196.159.0/24AS43145'

route:          91.196.159.0/24
descr:          RNC Ltd, Kiev, Ukraine
origin:         AS43145
mnt-by:         RNC-MNT
created:        2021-09-14T13:30:19Z
last-modified:  2021-09-14T13:30:19Z
source:         RIPE

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

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