% 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 '37.18.87.0 - 37.18.87.255'

% Abuse contact for '37.18.87.0 - 37.18.87.255' is 'eopen@kraus-m.ru'

inetnum:        37.18.87.0 - 37.18.87.255
netname:        KRAUS-M-NET
descr:          CJSC KRAUS-M
org:            ORG-CK18-RIPE
country:        RU
admin-c:        AR24245-RIPE
tech-c:         AR24245-RIPE
status:         ASSIGNED PA
mnt-by:         LIDERTELECOM-mnt
created:        2016-07-19T22:09:09Z
last-modified:  2020-01-16T15:07:18Z
source:         RIPE

organisation:   ORG-CK18-RIPE
org-name:       CJSC KRAUS-M
country:        RU
org-type:       OTHER
address:        123104, Russia, Moscow, Tverskoy bulvar, 13, str.1
abuse-c:        AR24245-RIPE
mnt-ref:        lidertelecom-mnt
mnt-by:         lidertelecom-mnt
created:        2014-04-01T13:16:43Z
last-modified:  2022-12-01T17:09:11Z
source:         RIPE # Filtered

role:           Abuse-C Role
nic-hdl:        AR24245-RIPE
abuse-mailbox:  eopen@kraus-m.ru
mnt-by:         lidertelecom-mnt
address:        123104, Russia, Moscow, Tverskoy bulvar, 13, str.1
created:        2014-11-17T16:35:23Z
last-modified:  2020-08-26T12:31:56Z
source:         RIPE # Filtered

% Information related to '37.18.87.0/24AS61991'

route:          37.18.87.0/24
descr:          CJSC KRAUS-M
origin:         AS61991
mnt-by:         lidertelecom-mnt
created:        2014-04-02T10:05:49Z
last-modified:  2014-04-02T10:05:49Z
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