% 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 '83.143.64.0 - 83.143.67.255'

% Abuse contact for '83.143.64.0 - 83.143.67.255' is 'abuse@ranepa.ru'
% Abuse-mailbox validation failed. Please refer to ORG-IML25-RIPE for further information.

inetnum:        83.143.64.0 - 83.143.67.255
netname:        RANEPA
country:        RU
org:            ORG-TRPA2-RIPE
admin-c:        KD2518-RIPE
admin-c:        AA26502-RIPE
tech-c:         KD2518-RIPE
tech-c:         AA26502-RIPE
status:         ASSIGNED PI
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         RANEPA-MNT
mnt-routes:     RANEPA-MNT
mnt-domains:    RANEPA-MNT
created:        2015-06-24T11:13:55Z
last-modified:  2021-12-27T09:47:03Z
source:         RIPE
sponsoring-org: ORG-IML25-RIPE

organisation:   ORG-TRPA2-RIPE
org-name:       The Russian Presidential Academy of National Economy and Public Administration
country:        RU
org-type:       OTHER
address:        Prospect Vernadskogo, 82, Moscow, Russian Federation 119571
abuse-c:        RAH42-RIPE
mnt-ref:        RANEPA-MNT
mnt-by:         RANEPA-MNT
created:        2014-08-28T15:06:44Z
last-modified:  2022-12-01T16:56:07Z
source:         RIPE # Filtered

person:         Andrey Astakhov
address:        Vernadskogo prospekt, 82,
address:        Moscow Region, Russia
phone:          +74992702944
nic-hdl:        AA26502-RIPE
mnt-by:         RANHiGS-MNT
created:        2013-09-24T13:03:43Z
last-modified:  2016-10-19T18:08:36Z
source:         RIPE # Filtered

person:         Kirill Danilov
address:        Prospect Vernadskogo, 82, Moscow, Russian Federation 119571
phone:          +79067507008
nic-hdl:        KD2518-RIPE
mnt-by:         RANEPA-MNT
created:        2014-08-28T15:01:54Z
last-modified:  2014-08-28T15:01:55Z
source:         RIPE # Filtered

% Information related to '83.143.64.0/22AS62133'

route:          83.143.64.0/22
descr:          RANHiGS delegated block NEW
origin:         AS62133
mnt-by:         RANEPA-MNT
mnt-by:         RANHiGS-MNT
created:        2015-12-11T13:28:43Z
last-modified:  2015-12-11T13:28:43Z
source:         RIPE

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