% 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 '141.91.0.0 - 141.91.255.255'

% Abuse contact for '141.91.0.0 - 141.91.255.255' is 'SubLIR-HH-SH@dataport.de'

inetnum:        141.91.0.0 - 141.91.255.255
netname:        FHHNET-static
descr:          DATAPORT - Anstalt des oeffentlichen Rechts
country:        DE
admin-c:        HH6829-RIPE
tech-c:         HH6829-RIPE
org:            ORG-DA851-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         TNG-MNT
mnt-by:         de-dataport-1-mnt
mnt-lower:      de-dataport-1-mnt
mnt-routes:     de-dataport-1-mnt
created:        1970-01-01T00:00:00Z
last-modified:  2021-03-01T10:59:44Z
source:         RIPE

organisation:   ORG-DA851-RIPE
org-name:       Dataport AoR
country:        DE
org-type:       LIR
address:        Billstrasse 82
address:        20539
address:        Hamburg
address:        GERMANY
phone:          +49 431 3295 6722
admin-c:        HH6829-RIPE
tech-c:         HH6829-RIPE
abuse-c:        AR43229-RIPE
mnt-ref:        de-dataport-1-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         de-dataport-1-mnt
created:        2017-09-28T07:39:26Z
last-modified:  2020-12-22T11:09:24Z
source:         RIPE # Filtered

person:         Helge Holz
address:        Billstrasse 82
address:        20539
address:        Hamburg
address:        GERMANY
phone:          +49 431 3295 6722
nic-hdl:        HH6829-RIPE
mnt-by:         de-dataport-1-mnt
created:        2017-09-28T07:39:26Z
last-modified:  2017-09-28T07:39:26Z
source:         RIPE

% Information related to '141.91.0.0/16AS33846'

route:          141.91.0.0/16
descr:          DATAPORT
origin:         AS33846
mnt-by:         TNG-MNT
created:        2004-09-13T12:15:11Z
last-modified:  2004-09-13T12:15:11Z
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