% 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 '185.153.192.0 - 185.153.195.255'

% Abuse contact for '185.153.192.0 - 185.153.195.255' is 'abuse@sitmp.cz'

inetnum:        185.153.192.0 - 185.153.195.255
netname:        CZ-SITMP-20160524
country:        CZ
org:            ORG-SITM3-RIPE
admin-c:        LS12781-RIPE
tech-c:         SN5970-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         cz-sitmp-1-mnt
created:        2016-05-24T14:44:51Z
last-modified:  2016-05-24T14:44:51Z
source:         RIPE

organisation:   ORG-SITM3-RIPE
org-name:       Sprava informacnich technologii mesta Plzne, p.o.
country:        CZ
org-type:       LIR
address:        Dominikanska 4
address:        30100
address:        Plzen
address:        CZECH REPUBLIC
phone:          +420 378 035 101
admin-c:        LS12781-RIPE
tech-c:         SN5970-RIPE
abuse-c:        AR36459-RIPE
mnt-ref:        cz-sitmp-1-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         cz-sitmp-1-mnt
created:        2016-05-19T13:00:25Z
last-modified:  2020-12-16T12:35:51Z
source:         RIPE # Filtered

person:         Ludek Santora
address:        Dominikanska 4
address:        30100
address:        Plzen
address:        CZECH REPUBLIC
phone:          +420 378 035 101
nic-hdl:        LS12781-RIPE
mnt-by:         cz-sitmp-1-mnt
created:        2016-05-19T13:00:24Z
last-modified:  2016-05-19T13:00:24Z
source:         RIPE

person:         SITMP NOC
address:        Dominikanska 4
address:        30100
address:        Plzen
address:        CZECH REPUBLIC
phone:          +420 378 035 101
nic-hdl:        SN5970-RIPE
mnt-by:         cz-sitmp-1-mnt
created:        2016-05-19T13:00:24Z
last-modified:  2016-05-19T13:00:24Z
source:         RIPE

% Information related to '185.153.192.0/23AS61110'

route:          185.153.192.0/23
origin:         AS61110
mnt-by:         cz-sitmp-1-mnt
created:        2016-06-15T12:38:31Z
last-modified:  2016-06-15T12:53:29Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.109 (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