% 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 '141.5.0.0 - 141.5.255.255'

% No abuse contact registered for 141.5.0.0 - 141.5.255.255

inetnum:        141.5.0.0 - 141.5.255.255
netname:        MPI-DO
descr:          Max Planck Institut fuer molekulare Physiologie
descr:          Otto Hahn Str.11
descr:          44227 Dortmund
country:        DE
admin-c:        GS4392-RIPE
tech-c:         HB4686-RIPE
tech-c:         GH3854-RIPE
status:         LEGACY
mnt-by:         DFN-LIR-MNT
mnt-by:         MPG-MNT
mnt-irt:        IRT-DFN-CERT
mnt-lower:      DFN-LIR-MNT
mnt-lower:      mnt-de-gwdg-1
mnt-routes:     DFN-MNT
mnt-routes:     mnt-de-gwdg-1
created:        1970-01-01T00:00:00Z
last-modified:  2023-07-11T12:55:51Z
source:         RIPE

role:           GWDG Hostmaster
address:        Gesellschaft fuer wissenschaftliche Datenverarbeitung mbH Goettingen
address:        Am Fassberg 11
address:        37077 Goettingen
address:        Germany
abuse-mailbox:  abuse@gwdg.de
phone:          +49 551 201 1510
fax-no:         +49 551 201 2150
admin-c:        PS17081-RIPE
tech-c:         HB4540-RIPE
nic-hdl:        GH3854-RIPE
mnt-by:         MPG-MNT
created:        2014-02-13T09:32:26Z
last-modified:  2014-02-13T09:48:59Z
source:         RIPE # Filtered

person:         Gottfried Siedenberg
address:        Max Planck Institut fuer molekulare Physiologie
address:        ZE EDV
address:        Otto Hahn Str. 11
address:        D-44227 Dortmund
address:        Germany
phone:          +49 231 133 2672
fax-no:         +49 231 133 1009
nic-hdl:        GS4392-RIPE
mnt-by:         DFN-NTFY
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-22T01:23:47Z
source:         RIPE # Filtered

person:         Heiko Barg
address:        Max Planck Institut fuer molekulare Physiologie
address:        ZE EDV
address:        Otto Hahn Str.11
address:        44227 Dortmund
address:        Germany
phone:          +49 231 133 2671
fax-no:         +49 231 133 1006
nic-hdl:        HB4686-RIPE
mnt-by:         DFN-NTFY
created:        2012-12-06T14:03:58Z
last-modified:  2012-12-06T14:03:58Z
source:         RIPE # Filtered

% Information related to '141.5.0.0/16AS680'

route:          141.5.0.0/16
descr:          MPI-DO-141-5
origin:         AS680
mnt-by:         DFN-MNT
mnt-routes:     MPG-MNT
created:        2016-11-30T13:09:26Z
last-modified:  2023-07-11T11:08:04Z
source:         RIPE

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

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