% 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 '193.22.29.0 - 193.22.29.255'

% Abuse contact for '193.22.29.0 - 193.22.29.255' is 'jens.brenke@messe.de'

inetnum:        193.22.29.0 - 193.22.29.255
netname:        MESSE-DE
descr:          Messegelaende
descr:          30521 Hannover
country:        DE
org:            ORG-DMA5-RIPE
admin-c:        JB3244-RIPE
tech-c:         CG12530-RIPE
status:         ASSIGNED PI
mnt-by:         DTAG-RR
mnt-by:         RIPE-NCC-END-MNT
mnt-routes:     DTAG-RR
created:        2003-12-16T12:48:42Z
last-modified:  2023-11-01T08:39:27Z
source:         RIPE
sponsoring-org: ORG-DTA2-RIPE

organisation:   ORG-DMA5-RIPE
org-name:       DEUTSCHE MESSE AG
country:        DE
org-type:       OTHER
address:        Deutsche Messe AG
address:        Messegelaende
address:        30521 Hannover
address:        Germany
phone:          +49 511 89 32329
abuse-c:        AR26912-RIPE
admin-c:        JB3244-RIPE
tech-c:         CG12530-RIPE
mnt-ref:        DTAG-RR
mnt-by:         DTAG-RR
created:        2005-12-15T11:15:02Z
last-modified:  2023-11-01T08:41:09Z
source:         RIPE # Filtered

person:         Christoph Goth
address:        Deutsche Messe AG
address:        Messegelaende
address:        30521 Hannover
address:        Germany
phone:          +49 511 8933089
nic-hdl:        CG12530-RIPE
mnt-by:         DTAG-RR
created:        2023-06-29T10:07:53Z
last-modified:  2023-11-01T08:45:55Z
source:         RIPE # Filtered

person:         Jens Brenke
address:        Deutsche Messe AG
address:        Messegelaende
address:        30521 Hannover
address:        Germany
phone:          +49 511 89 32329
nic-hdl:        JB3244-RIPE
mnt-by:         DTAG-RR
created:        2003-12-12T14:15:37Z
last-modified:  2023-11-01T08:45:55Z
source:         RIPE # Filtered

% Information related to '193.22.29.0/24AS3320'

route:          193.22.29.0/24
descr:          Deutsche Messe AG
origin:         AS3320
mnt-by:         DTAG-RR
created:        2018-03-20T09:30:19Z
last-modified:  2018-03-20T09:30:19Z
source:         RIPE

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