% 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 '217.74.47.0 - 217.74.47.255'

% Abuse contact for '217.74.47.0 - 217.74.47.255' is 'abuse@datafort.ru'

inetnum:        217.74.47.0 - 217.74.47.255
netname:        DF
descr:          DF Ltd Corporate Nerwork
country:        RU
admin-c:        IBS111-RIPE
admin-c:        DN3455-RIPE
admin-c:        ASK4-RIPE
tech-c:         IBS111-RIPE
tech-c:         ASK4-RIPE
status:         ASSIGNED PA
remarks:        ***************************************
remarks:        * This IP pool managed by "DF DataFort"
remarks:        * Please contact info@datafort.ru
remarks:        * Call +7 (495) 967-80-10
remarks:        ***********************************
mnt-by:         ru-datafort-mnt
created:        2002-01-03T12:40:46Z
last-modified:  2024-05-06T12:17:59Z
source:         RIPE # Filtered

role:           IBS EXPERTISE LLC
address:        IBS/Internet Network Operations
address:        IBS EXPERTISE LLC
remarks:        trouble:      Points of contact for IBS Network Operations
remarks:        trouble:      -----------------------------------------------------------
remarks:        trouble:      Routing and peering issues:          noc@ibs.ru
remarks:        trouble:      SPAM issues:                         abuse@ibs.ru
remarks:        trouble:      Network security issues:             noc@ibs.ru
remarks:        trouble:      Mail and News issues:                postmaster@ibs.ru
admin-c:        ASK4-RIPE
admin-c:        DN3455-RIPE
tech-c:         ASK4-RIPE
tech-c:         DN3455-RIPE
abuse-mailbox:  abuse@ibs.ru
nic-hdl:        IBS111-RIPE
mnt-by:         IBS-MNT-RIPE
created:        2016-01-14T11:41:09Z
last-modified:  2021-03-05T12:37:08Z
source:         RIPE # Filtered

person:         Alexey S Kuritsyn
address:        IBS Company, project DataFort
address:        9B Dmitrovskoe str.
address:        101511, Moscow, Russia
phone:          +7 495 9678080
fax-no:         +7 495 9678081
nic-hdl:        ASK4-RIPE
mnt-by:         IBS-MNT-RIPE
created:        2002-01-14T17:43:18Z
last-modified:  2018-07-10T10:54:24Z
source:         RIPE # Filtered
remarks:        modified for Russian phone area changes

person:         Denis Nikolaev
address:        Dmitrovskoe shosse, 9B
address:        127434
address:        Moscow
address:        RUSSIAN FEDERATION
phone:          +7 495 967-8080
nic-hdl:        DN3455-RIPE
mnt-by:         ru-ibsexpertise-1-mnt
created:        2015-12-14T08:56:29Z
last-modified:  2015-12-14T08:56:29Z
source:         RIPE

% Information related to '217.74.46.0/23AS20919'

route:          217.74.46.0/23
descr:          DF Group Autonomous System
origin:         AS20919
mnt-by:         ru-datafort-mnt
created:        2020-10-21T10:32:19Z
last-modified:  2024-05-06T12:08:38Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.113.2 (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