% 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://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '193.109.238.0 - 193.109.238.255'

% Abuse contact for '193.109.238.0 - 193.109.238.255' is 'v-abuse-5011@fv.nrw.de'

inetnum:        193.109.238.0 - 193.109.238.255
netname:        RZF-NRW
descr:          40476 Duesseldorf
country:        DE
org:            ORG-RDFN2-RIPE
admin-c:        RNO10-RIPE
tech-c:         RNO10-RIPE
status:         ASSIGNED PI
mnt-by:         RZF-NRW-MNT
mnt-by:         rzf-mnt-standard
mnt-by:         RIPE-NCC-END-MNT
mnt-routes:     DTAG-RR
mnt-routes:     rzf-mnt-standard
created:        2001-11-28T13:45:08Z
last-modified:  2021-05-27T14:42:25Z
source:         RIPE

organisation:   ORG-RDFN2-RIPE
org-name:       Rechenzentrum der Finanzverwaltung NRW
country:        DE
org-type:       LIR
address:        Rossstr. 131
address:        40476
address:        Duesseldorf
address:        GERMANY
phone:          +49 211 4572 2672
admin-c:        RNO10-RIPE
tech-c:         RNO10-RIPE
abuse-c:        AR43880-RIPE
mnt-ref:        rzf-mnt-standard
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         rzf-mnt-standard
created:        2017-11-16T09:34:55Z
last-modified:  2020-12-16T12:42:23Z
source:         RIPE # Filtered

role:           RZF Network Operations
address:        Rossstr. 131, D-40476 Duesseldorf
tech-c:         AS40156-RIPE
tech-c:         AN31630-RIPE
tech-c:         CG9977-RIPE
admin-c:        AS40156-RIPE
admin-c:        TF3994-RIPE
admin-c:        AN31630-RIPE
admin-c:        CG9977-RIPE
nic-hdl:        RNO10-RIPE
mnt-by:         de-rzfnrw-1-mnt
mnt-by:         rzf-mnt-standard
created:        2017-11-20T15:50:49Z
last-modified:  2021-07-07T14:50:15Z
source:         RIPE # Filtered

% Information related to '193.109.238.0/24AS202283'

route:          193.109.238.0/24
origin:         AS202283
mnt-by:         rzf-mnt-standard
created:        2019-06-18T07:48:05Z
last-modified:  2019-06-18T07:48:05Z
source:         RIPE

% Information related to '193.109.238.0/24AS3320'

route:          193.109.238.0/24
descr:          RZF-NRW
mnt-routes:     rzf-mnt-standard
origin:         AS3320
mnt-by:         DTAG-RR
created:        2008-06-26T05:54:11Z
last-modified:  2019-06-17T11:35:57Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.114 (ABERDEEN)

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