% 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 '84.237.16.0 - 84.237.31.255'

% Abuse contact for '84.237.16.0 - 84.237.31.255' is 'lir@nsc.ru'

inetnum:        84.237.16.0 - 84.237.31.255
netname:        ISC-SBRAS-Network
descr:          Irkutsk Scientific Center SB RAS
descr:          Irkutsk, Russia
country:        RU
admin-c:        AAF10-RIPE
admin-c:        TIM82-RIPE
tech-c:         TIM82-RIPE
status:         ASSIGNED PA
mnt-by:         SBRAS-MNT
mnt-routes:     ISDCT-MNT-RIPE
mnt-lower:      ISDCT-MNT-RIPE
created:        2009-03-31T03:07:30Z
last-modified:  2020-01-09T06:35:57Z
source:         RIPE # Filtered

person:         Aleksey A. Fomin
address:        Institute of Computational Technologies
address:        pr. Ak. Lavrentyeva 6 Room 405
address:        630090 Novosibirsk
address:        Russia
phone:          +7 383 334 91 96
fax-no:         +7 383 330 63 42
nic-hdl:        AAF10-RIPE
mnt-by:         SBRAS-MNT
created:        2003-06-17T04:34:25Z
last-modified:  2009-04-06T08:52:01Z
source:         RIPE # Filtered

person:         Taras I Madzhara
address:        134, Lermontova str
address:        664033 Irkutsk, Russia
mnt-by:         ISDCT-MNT-RIPE
phone:          +7 395 245 31 00
nic-hdl:        TIM82-RIPE
created:        2005-05-02T06:21:07Z
last-modified:  2018-07-30T12:55:46Z
source:         RIPE # Filtered

% Information related to '84.237.16.0/20AS5387'

route:          84.237.16.0/20
descr:          Irkutsk Scientific Center SB RAS
origin:         AS5387
mnt-by:         SBRAS-MNT
mnt-routes:     ISDCT-MNT-RIPE
mnt-lower:      ISDCT-MNT-RIPE
created:        2009-03-31T04:20:38Z
last-modified:  2009-03-31T04:20:38Z
source:         RIPE # Filtered

% Information related to '84.237.16.0/20AS8506'

route:          84.237.16.0/20
descr:          Institute for system dynamics and control theory SB RAS
origin:         AS8506
mnt-by:         ISDCT-MNT-RIPE
created:        2009-03-31T04:23:21Z
last-modified:  2009-03-31T04:23:21Z
source:         RIPE

% 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