% 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 '212.192.240.0 - 212.193.31.255'

% Abuse contact for '212.192.240.0 - 212.193.31.255' is 'ripe@interlir.com'

inetnum:        212.192.240.0 - 212.193.31.255
netname:        CZ-RELCOM-19990512
country:        CZ
org:            ORG-RCS23-RIPE
mnt-lower:      interlir-mnt
admin-c:        RCAG2-RIPE
tech-c:         RCAG2-RIPE
abuse-c:        AR63624-RIPE
status:         ALLOCATED PA
mnt-by:         cz-relcom-1-mnt
mnt-by:         RIPE-NCC-HM-MNT
created:        2019-12-24T10:15:18Z
last-modified:  2022-11-22T12:21:03Z
source:         RIPE

organisation:   ORG-RCS23-RIPE
org-name:       Reliable Communications s.r.o.
country:        CZ
org-type:       LIR
address:        Prokopova 2856/10, Zizkov
address:        130 00
address:        Praha 3
address:        CZECH REPUBLIC
phone:          +420234717525
admin-c:        RCAG2-RIPE
tech-c:         RCAG2-RIPE
abuse-c:        AR46259-RIPE
mnt-ref:        cz-relcom-1-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         cz-relcom-1-mnt
created:        2018-04-30T08:40:47Z
last-modified:  2022-05-12T09:55:41Z
source:         RIPE # Filtered

role:           Reliable Communications administration group
address:        Prokopova 2856/10, Zizkov
address:        130 00
address:        Praha 3
address:        CZECH REPUBLIC
phone:          +420228880273
abuse-mailbox:  abuse@relcom.com
tech-c:         AM44967-RIPE
nic-hdl:        RCAG2-RIPE
mnt-by:         cz-relcom-1-mnt
created:        2018-05-15T08:27:24Z
last-modified:  2022-06-02T10:33:20Z
source:         RIPE # Filtered

% Information related to '212.192.243.0/24AS213035'

route:          212.192.243.0/24
origin:         AS213035
mnt-by:         interlir-mnt
created:        2023-04-06T15:02:29Z
last-modified:  2023-04-06T15:02:29Z
source:         RIPE

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

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