% 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 '185.4.227.0 - 185.4.227.255'

% Abuse contact for '185.4.227.0 - 185.4.227.255' is 'abuse@istanbuldc.com'

inetnum:        185.4.227.0 - 185.4.227.255
netname:        TR-SAYFANET1-20120927
country:        TR
org:            ORG-INBT1-RIPE
admin-c:        ER3896-RIPE
tech-c:         ER3896-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         ISTANBULDC-MNT
mnt-lower:      ER101-MNT
mnt-lower:      ISTANBULDC-MNT
mnt-lower:      SAYFA-NET-MNT
mnt-routes:     ER101-MNT
created:        2020-12-14T15:19:57Z
last-modified:  2022-12-14T04:19:15Z
source:         RIPE # Filtered

organisation:   ORG-INBT1-RIPE
remarks:        *** TURKIYENIN EN BUYUK IP KIRALAMA SIRKETI ***
country:        TR
remarks:        *** ip kiralayan musteri bilgisi icin lutfen info@istanbuldc.com a ulasiniz ***
org-name:       Istanbuldc Veri Merkezi Ltd Sti
org-type:       LIR
address:        Esentepe Mh Buyukdere Cd No199/6 Kat:-1 Levent199 Sisli
address:        34394
address:        ISTANBUL
address:        TURKEY
phone:          +905327235263
fax-no:         +902129200000
abuse-c:        AR17383-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        ISTANBULDC-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         ISTANBULDC-MNT
created:        2012-09-12T13:28:12Z
last-modified:  2022-12-14T04:19:19Z
source:         RIPE # Filtered

person:         Engin Rencber
remarks:        IstanbulDC Veri Merkezi Yoneticisi
address:        Buyukdere Cd. No171 Metrocity Kat-4 Datacenter Sisli Istanbul
phone:          +905327235263
nic-hdl:        ER3896-RIPE
mnt-by:         ER101-MNT
created:        2012-09-12T13:50:38Z
last-modified:  2023-03-19T18:27:22Z
source:         RIPE # Filtered

% Information related to '185.4.227.0/24AS197328'

route:          185.4.227.0/24
origin:         AS197328
mnt-by:         ISTANBULDC-MNT
mnt-by:         ISTANBULDC-MNT
created:        2020-12-13T15:15:30Z
last-modified:  2023-02-09T15:05:38Z
source:         RIPE

% Information related to '185.4.227.0/24AS59447'

route:          185.4.227.0/24
origin:         AS59447
mnt-by:         ISTANBULDC-MNT
mnt-by:         ISTANBULDC-MNT
created:        2023-02-09T15:05:38Z
last-modified:  2023-02-09T15:05:38Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.111 (ABERDEEN)

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