% 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 '46.173.0.0 - 46.173.29.255'

% Abuse contact for '46.173.0.0 - 46.173.29.255' is 'ilmar@sprintinet.ru'

inetnum:        46.173.0.0 - 46.173.29.255
netname:        ORG-SIL51-RIPE
country:        RU
org:            ORG-SIL51-RIPE
admin-c:        IMAR-RIPE
tech-c:         IMAR-RIPE
status:         ASSIGNED PI
mnt-by:         SPRINT-MNT
mnt-by:         RIPE-NCC-END-MNT
created:        2024-09-26T08:11:15Z
last-modified:  2024-09-26T08:11:15Z
source:         RIPE
sponsoring-org: ORG-RMl1-RIPE

organisation:   ORG-SIL51-RIPE
org-name:       SPRINT INET LLC
country:        RU
org-type:       OTHER
descr:          SPRINT INET LLC
remarks:
address:        Russia, Novorossiysk
phone:          +7 8617 30-30-60
admin-c:        IMAR-RIPE
tech-c:         IMAR-RIPE
abuse-c:        AC31141-RIPE
mnt-ref:        SPRINT-MNT
mnt-by:         SPRINT-MNT
created:        2019-10-30T14:27:52Z
last-modified:  2022-12-01T16:51:50Z
source:         RIPE # Filtered

person:         Ilya Marin
address:        353923 Russia, Novorossiysk
address:        pr.Lenina 9A office 1
org:            ORG-SPRO1-RIPE
mnt-by:         SPRINT-MNT
phone:          +7 8617 30-30-60
fax-no:         +7 8617 30-30-60
nic-hdl:        IMAR-RIPE
created:        2007-05-31T07:12:28Z
last-modified:  2019-10-22T15:20:58Z
source:         RIPE # Filtered

% Information related to '46.173.0.0/20AS43235'

route:          46.173.0.0/20
origin:         AS43235
mnt-by:         SPRINT-MNT
created:        2017-01-23T12:03:33Z
last-modified:  2017-01-23T12:03:33Z
source:         RIPE

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

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