% 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 '109.172.56.0 - 109.172.63.255'

% Abuse contact for '109.172.56.0 - 109.172.63.255' is 'abuse@rt.ru'

inetnum:        109.172.56.0 - 109.172.63.255
netname:        SUMTEL-COMMON-NET
descr:          Summa Telecom common ISP network Makhachkala
remarks:        Makhachkala city
country:        RU
admin-c:        SUMM-RIPE
tech-c:         SUMM-RIPE
status:         ASSIGNED PA
mnt-by:         Rostelecom-mnt
created:        2020-11-27T12:11:04Z
last-modified:  2020-11-27T12:11:04Z
source:         RIPE
geoloc:         42.983616301556424 47.505483627319336

role:           CJSC National Telecom Technical Department
org:            ORG-NTC6-RIPE
address:        1st Kozhevnicheskiy sidestreet, 8
address:        Moscow 115114
address:        Russia
phone:          +74995750001
fax-no:         +74995750009
abuse-mailbox:  abuse@sumtel.ru
nic-hdl:        SUMM-RIPE
mnt-by:         SUMTEL-MNT-RIPE
created:        2006-10-05T11:56:54Z
last-modified:  2020-06-30T22:55:54Z
source:         RIPE # Filtered

% Information related to '109.172.58.0/24AS41691'

route:          109.172.58.0/24
descr:          SUMTEL-MHL-NAT-POOL
origin:         AS41691
mnt-by:         MNT-SUMTEL-ROUTES
created:        2011-11-09T15:12:24Z
last-modified:  2011-11-09T15:12:24Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.111 (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