% 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 '84.244.72.32 - 84.244.72.47'

% Abuse contact for '84.244.72.32 - 84.244.72.47' is 'abuse@bluetone.cz'

inetnum:        84.244.72.32 - 84.244.72.47
netname:        ZPMV
descr:          Praha
country:        CZ
admin-c:        JH2918-RIPE
tech-c:         JH2918-RIPE
status:         ASSIGNED PA
mnt-by:         BLUETONE-MNT
mnt-lower:      BLUETONE-MNT
created:        2007-11-02T13:04:17Z
last-modified:  2007-11-02T13:04:17Z
source:         RIPE

person:         Jan Hora
address:        Zdravotni pojistovna ministerstva vnitra Ceske republiky
address:        Na Micankach 2
address:        10100 Praha
address:        Czech Republic
phone:          +420 272 737 566
fax-no:         +420 272 732 431
remarks:        www.zpmvcr.cz
nic-hdl:        JH2918-RIPE
created:        2004-02-05T09:26:36Z
last-modified:  2020-06-04T09:56:28Z
source:         RIPE # Filtered
mnt-by:         BlueTone-MNT

% Information related to '84.244.64.0/18AS25248'

route:          84.244.64.0/18
descr:          BlueTone-CRa-CZ
descr:          Third address block
origin:         AS25248
mnt-by:         BlueTone-MNT
created:        2004-07-21T12:53:57Z
last-modified:  2004-07-21T12:53:57Z
source:         RIPE

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