% 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 '141.34.0.0 - 141.34.255.255'

% Abuse contact for '141.34.0.0 - 141.34.255.255' is 'noc@desy.de'

inetnum:        141.34.0.0 - 141.34.255.255
netname:        ZEHPNET
descr:          Platanenallee 6, 15738 Zeuthen
country:        DE
org:            ORG-DED2-RIPE
admin-c:        RL13528-RIPE
tech-c:         RL13528-RIPE
status:         LEGACY
mnt-by:         DFN-LIR-MNT
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-irt:        IRT-DFN-CERT
mnt-routes:     DFN-MNT
sponsoring-org: ORG-DV1-RIPE
created:        1970-01-01T00:00:00Z
last-modified:  2021-01-11T14:58:53Z
source:         RIPE

organisation:   ORG-DED2-RIPE
org-name:       Deutsches Elektronen-Synchrotron DESY
country:        DE
org-type:       OTHER
address:        Notkestr. 85
address:        22607 Hamburg
address:        Germany
admin-c:        KO1389-RIPE
tech-c:         ZD55-ARIN
abuse-c:        ZD55-ARIN
mnt-ref:        DFN-LIR-MNT
mnt-by:         DFN-LIR-MNT
created:        2015-04-07T09:13:02Z
last-modified:  2022-12-01T16:22:05Z
source:         RIPE # Filtered

person:         Rico Lindemann
address:        Deutsches Elektronen-Synchrotron DESY
address:        Platanenallee 6
address:        15738 Zeuthen
address:        Germany
phone:          +49 33762 77526
nic-hdl:        RL13528-RIPE
mnt-by:         DFN-NTFY
created:        2021-01-11T14:58:53Z
last-modified:  2021-01-11T14:58:53Z
source:         RIPE # Filtered

% Information related to '141.34.0.0/16AS1754'

route:          141.34.0.0/16
descr:          ZEHPNET
origin:         AS1754
member-of:      RS-HEPNET
mnt-by:         AS1754-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-22T09:31:52Z
source:         RIPE

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