% 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 '137.248.0.0 - 137.248.255.255'

% Abuse contact for '137.248.0.0 - 137.248.255.255' is 'abuse@dfn.de'

inetnum:        137.248.0.0 - 137.248.255.255
netname:        UNI-MARBURG
descr:          Hochschulrechenzentrum
descr:          Hans-Meerwein-Strasse
descr:          35032 Marburg
descr:          Germany
org:            ORG-PM76-RIPE
country:        DE
admin-c:        CB15820-RIPE
tech-c:         CB15820-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         DFN-LIR-MNT
mnt-lower:      DFN-LIR-MNT
mnt-routes:     DFN-MNT
mnt-irt:        IRT-DFN-CERT
created:        1970-01-01T00:00:00Z
last-modified:  2016-09-29T12:08:31Z
source:         RIPE
sponsoring-org: ORG-DV1-RIPE

organisation:   ORG-PM76-RIPE
org-name:       Philipps-Universitaet Marburg
country:        DE
org-type:       OTHER
address:        Biegenstrasse 10
address:        35032 Marburg
address:        Germany
admin-c:        CB15820-RIPE
tech-c:         CB15820-RIPE
abuse-c:        DH5989-RIPE
mnt-ref:        DFN-LIR-MNT
mnt-by:         DFN-LIR-MNT
created:        2015-09-08T14:32:48Z
last-modified:  2022-12-01T17:31:34Z
source:         RIPE # Filtered

person:         Christian Borsdorf
address:        Philipps-Universitaet Marburg
address:        Hochschulrechenzentrum
address:        Hans-Meerwein-Str.
address:        35032 Marburg
address:        Germany
phone:          +49 6421 28 23515
fax-no:         +49 6421 28 26994
nic-hdl:        CB15820-RIPE
mnt-by:         DFN-NTFY
created:        2016-09-29T12:08:31Z
last-modified:  2022-10-13T15:25:42Z
source:         RIPE # Filtered

% Information related to '137.248.0.0/16AS1275'

route:          137.248.0.0/16
descr:          UNI-MARBURG
origin:         AS1275
mnt-by:         DFN-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-22T09:32:38Z
source:         RIPE

% Information related to '137.248.0.0/16AS680'

route:          137.248.0.0/16
descr:          UNI-MARBURG
origin:         AS680
mnt-by:         DFN-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-22T09:33:18Z
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