% 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 '91.249.248.160 - 91.249.248.191'

% Abuse contact for '91.249.248.160 - 91.249.248.191' is 'abuse@ewetel.de'

inetnum:        91.249.248.160 - 91.249.248.191
netname:        STAEDTISCHEBUEHNENOSNABRUECKGGMBHNET
descr:          Staedtische Buehnen Osnabrueck gGmbH
descr:          Domhof 1011
descr:          D-49074 Osnabrueck
country:        DE
admin-c:        JG10070-RIPE
tech-c:         JG10070-RIPE
status:         ASSIGNED PA
mnt-by:         EWETEL-MNT
created:        2020-10-14T08:34:19Z
last-modified:  2020-10-14T08:34:19Z
source:         RIPE

person:         Jens Griese
address:        Staedtische Buehnen Osnabrueck gGmbH
address:        Domhof 1011
address:        D-49074 Osnabrueck
phone:          +495417600340
nic-hdl:        JG10070-RIPE
mnt-by:         EWETEL-MNT
created:        2020-10-14T08:32:18Z
last-modified:  2020-10-14T08:32:18Z
source:         RIPE # Filtered

% Information related to '91.248.0.0/15AS9145'

route:          91.248.0.0/15
descr:          DE-EWETEL-20120223
origin:         AS9145
mnt-by:         EWETEL-MNT
created:        2012-09-14T16:30:50Z
last-modified:  2012-09-14T16:30:50Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.116 (SHETLAND)