% 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 '2a00:5ba0:20::/48'

% Abuse contact for '2a00:5ba0:20::/48' is 'abuse@uni-bonn.de'

inet6num:       2a00:5ba0:20::/48
netname:        DE-UNI-BONN-MATHEMATIK
org:            ORG-RFB2-RIPE
country:        DE
admin-c:        NUOB3-RIPE
tech-c:         NUOB3-RIPE
status:         ASSIGNED
mnt-by:         NOCNOC-MNT
created:        2019-02-08T09:25:43Z
last-modified:  2019-02-08T09:25:43Z
source:         RIPE # Filtered

organisation:   ORG-RFB2-RIPE
org-name:       Rheinische Friedrich-Wilhelms-Universitaet Bonn
country:        DE
org-type:       LIR
address:        Wegelerstrasse 6
address:        53115
address:        Bonn
address:        GERMANY
phone:          +49228733161
fax-no:         +49228732743
mnt-ref:        NOCNOC-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         NOCNOC-MNT
abuse-c:        UAH7-RIPE
created:        2013-03-08T09:25:23Z
last-modified:  2020-12-16T12:42:11Z
source:         RIPE # Filtered

role:           NOC University of Bonn
org:            ORG-RFB2-RIPE
address:        Rheinische Friedrich-Wilhelms-Universitaet Bonn
address:        Hochschulrechenzentrum
address:        Wegelerstrasse 6
address:        53115 Bonn
address:        Germany
admin-c:        MC25613-RIPE
tech-c:         TB6821-RIPE
tech-c:         MH17672-RIPE
abuse-mailbox:  abuse@uni-bonn.de
nic-hdl:        NUOB3-RIPE
mnt-by:         NOCNOC-MNT
created:        2019-02-06T15:51:45Z
last-modified:  2019-02-15T12:17:21Z
source:         RIPE # Filtered

% Information related to '2a00:5ba0::/29AS680'

route6:         2a00:5ba0::/29
descr:          UniBonn-V6-AGG2
origin:         AS680
mnt-by:         DFN-MNT
created:        2014-11-19T10:28:36Z
last-modified:  2014-11-19T10:28:36Z
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