% 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 '143.93.128.0 - 143.93.159.255'

% Abuse contact for '143.93.128.0 - 143.93.159.255' is 'abuse@hs-koblenz.de'

inetnum:        143.93.128.0 - 143.93.159.255
netname:        FH-RPL-NET
descr:          Hochschule Koblenz
descr:          Konrad-Zuse-Strasse 1
descr:          56075 Koblenz
country:        DE
admin-c:        JF7726-RIPE
tech-c:         RHK14-RIPE
abuse-c:        RHK14-RIPE
status:         LEGACY
mnt-by:         AS2857-MNT
created:        2004-10-11T22:58:20Z
last-modified:  2023-01-31T09:51:03Z
source:         RIPE

role:           Rechenzentrum Hochschule Koblenz
address:        Hochschule Koblenz
address:        Rechenzentrum
address:        Konrad-Zuse-Strasse 1
address:        56075 Koblenz
address:        Germany
phone:          +49 261 9528 139
abuse-mailbox:  abuse@hs-koblenz.de
nic-hdl:        RHK14-RIPE
mnt-by:         AS2857-MNT
created:        2023-01-31T09:22:06Z
last-modified:  2023-01-31T09:22:06Z
source:         RIPE # Filtered
admin-c:        JF7726-RIPE
tech-c:         JF7726-RIPE

person:         Johannes Fondel
address:        Hochschule Koblenz
address:        Konrad-Zuse-Strasse 1
address:        56075 Koblenz
address:        Germany
phone:          +49 261 9528 139
nic-hdl:        JF7726-RIPE
mnt-by:         AS2857-MNT
created:        2023-01-31T09:10:35Z
last-modified:  2023-01-31T09:10:35Z
source:         RIPE

% Information related to '143.93.128.0/19AS2857'

route:          143.93.128.0/19
descr:          FH-RPL-NET
origin:         AS2857
mnt-by:         AS2857-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-22T09:33:36Z
source:         RIPE

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