% 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://docs.db.ripe.net/terms-conditions.html

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

% Information related to '91.196.248.0 - 91.196.251.255'

% Abuse contact for '91.196.248.0 - 91.196.251.255' is 'tp@optikline.com'

inetnum:        91.196.248.0 - 91.196.251.255
geoloc:         53.521979700334775 49.16182279586792
netname:        OPTIKLINE-NET
country:        RU
org:            ORG-OLL14-RIPE
admin-c:        DG10528-RIPE
tech-c:         DG10528-RIPE
status:         ASSIGNED PI
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-OPTIKLINE
mnt-routes:     MNT-OPTIKLINE
mnt-domains:    MNT-OPTIKLINE
created:        2007-07-05T12:25:43Z
last-modified:  2024-09-27T12:39:53Z
source:         RIPE # Filtered
remarks:        Geofeed http://optikline.com/optikline.com.geofeed.csv

organisation:   ORG-OLL14-RIPE
org-name:       Optik Line LLC
country:        RU
org-type:       LIR
address:        Izumrudnaya str. 1
address:        445143
address:        s. Podstepki, Samarskaya obl.
address:        RUSSIAN FEDERATION
phone:          +78482939111
admin-c:        DG10528-RIPE
tech-c:         DG10528-RIPE
abuse-c:        AR36236-RIPE
mnt-ref:        MNT-OPTIKLINE
mnt-by:         RIPE-NCC-HM-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         MNT-OPTIKLINE
created:        2016-04-28T07:52:52Z
last-modified:  2022-01-27T06:16:00Z
source:         RIPE # Filtered

person:         Dmitry Gureanov
address:        Izumrudnaya str. 1
address:        445143
address:        s. Podstepki, Samarskaya obl.
address:        RUSSIAN FEDERATION
phone:          +78482939111
nic-hdl:        DG10528-RIPE
mnt-by:         MNT-OPTIKLINE
created:        2016-04-28T07:52:52Z
last-modified:  2016-04-28T07:52:52Z
source:         RIPE

% Information related to '91.196.249.0/24AS43273'

route:          91.196.249.0/24
descr:          subnet 2 of 91.196.248.0/22
origin:         AS43273
mnt-by:         MNT-OPTIKLINE
created:        2010-09-17T15:01:24Z
last-modified:  2010-09-17T15:01:24Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.114 (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