% 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 '91.199.37.0 - 91.199.37.255'

% Abuse contact for '91.199.37.0 - 91.199.37.255' is 'noc@amik.dn.ua'

inetnum:        91.199.37.0 - 91.199.37.255
netname:        ORG-FGSY1-RIPE
country:        RU
org:            ORG-FGSY1-RIPE
sponsoring-org: ORG-PDI1-RIPE
admin-c:        IZ7777-RIPE
tech-c:         IZ7777-RIPE
status:         ASSIGNED PI
mnt-by:         AMIK-MNT
mnt-by:         RIPE-NCC-END-MNT
created:        2021-04-21T14:56:47Z
last-modified:  2022-07-15T13:12:57Z
source:         RIPE # Filtered

organisation:   ORG-FGSY1-RIPE
org-name:       FOP Gridenko Sergiy Yakovych
country:        UA
org-type:       OTHER
address:        63, Leninsky av., apt. 32
address:        Donetsk, Ukraine, 83112
phone:          +380506220236
phone:          +380506463218
abuse-c:        AA27167-RIPE
mnt-ref:        AMIK-MNT
mnt-by:         AMIK-MNT
created:        2021-03-17T21:10:17Z
last-modified:  2022-12-01T16:25:45Z
source:         RIPE # Filtered

person:         Igor Zinovjev
address:        7, Vitebskaya str.
address:        85113
address:        Konstantinovka
address:        Donetsk area
address:        Ukraine
phone:          +380627292290
nic-hdl:        IZ7777-RIPE
mnt-by:         AMIK-MNT
created:        2012-03-12T09:52:20Z
last-modified:  2022-09-10T11:44:46Z
source:         RIPE # Filtered

% Information related to '91.199.37.0/24AS44137'

route:          91.199.37.0/24
origin:         AS44137
descr:          Route to SYGrid-AS
mnt-by:         AMIK-MNT
created:        2021-04-21T17:25:42Z
last-modified:  2024-02-08T17:57:21Z
source:         RIPE # Filtered

% 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