% 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 '212.79.108.0 - 212.79.108.63'

% Abuse contact for '212.79.108.0 - 212.79.108.63' is 'nes.net@email.cz'

inetnum:        212.79.108.0 - 212.79.108.63
netname:        NESNET
org:            ORG-NES8-RIPE
geoloc:         49.7283161 15.0783942
descr:          Spolek Nes.Net
country:        CZ
admin-c:        NES38-RIPE
tech-c:         NES38-RIPE
status:         ASSIGNED PA
mnt-by:         CZNFX-MNT
created:        2015-12-18T08:44:48Z
last-modified:  2015-12-18T08:44:48Z
source:         RIPE

organisation:   ORG-NES8-RIPE
org-name:       Spolek Nes.Net
org-type:       OTHER
address:        Nesmerice 27
address:        285 22 Zruc nad Sazavou
address:        Czech Republic
admin-c:        NES38-RIPE
tech-c:         NES38-RIPE
abuse-c:        NES38-RIPE
mnt-ref:        CZNFX-MNT
mnt-by:         CZNFX-MNT
created:        2015-12-18T08:40:54Z
last-modified:  2015-12-18T08:40:54Z
source:         RIPE # Filtered

role:           Spolek Nes.Net
address:        Nesmerice 27
address:        285 22 Zruc nad Sazavou
address:        Czech Republic
abuse-mailbox:  nes.net@email.cz
nic-hdl:        NES38-RIPE
mnt-by:         CZNFX-MNT
created:        2015-12-18T08:38:42Z
last-modified:  2015-12-18T08:38:42Z
source:         RIPE # Filtered

% Information related to '212.79.104.0/21AS8251'

route:          212.79.104.0/21
descr:          Neutral czFree eXchange members
origin:         AS8251
mnt-by:         CZNFX-MNT
created:        2019-01-15T18:22:33Z
last-modified:  2019-01-15T18:22:33Z
source:         RIPE

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

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