% 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://apps.db.ripe.net/docs/HTML-Terms-And-Conditions

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '81.90.38.0 - 81.90.39.255'

% Abuse contact for '81.90.38.0 - 81.90.39.255' is 'abuse@cmo.de'

inetnum:        81.90.38.0 - 81.90.39.255
netname:        CMO-Customer-Reutlingen-20210721
descr:          CMO Internet Dienstleistungen GmbH
descr:          Kaiserstr. 57/1
descr:          72764 Reutlingen
country:        DE
admin-c:        NS4596-RIPE
tech-c:         MS2621-RIPE
status:         ASSIGNED PA
mnt-by:         CMO-MNT
mnt-lower:      CMO-MNT
mnt-routes:     CMO-MNT
created:        2003-12-16T16:26:10Z
last-modified:  2021-07-21T11:42:16Z
source:         RIPE # Filtered

person:         Marcus Sommer
address:        CMO Internet Dienstleistungen GmbH
address:        Kaiserstr. 57/1
address:        72764 Reutlingen
address:        Germany
phone:          +49 7121 261970
fax-no:         +49 7121 26197150
nic-hdl:        MS2621-RIPE
mnt-by:         CMO-MNT
created:        2002-07-03T08:56:18Z
last-modified:  2018-01-23T18:32:11Z
source:         RIPE # Filtered

person:         Norman Sommer
address:        CMO Internet Dienstleistungen GmbH
address:        Kaiserstr. 57/1
address:        72764 Reutlingen
address:        Germany
phone:          +49 7121 261970
fax-no:         +49 7121 26197150
nic-hdl:        NS4596-RIPE
mnt-by:         CMO-MNT
created:        2013-03-04T15:24:00Z
last-modified:  2018-01-23T18:33:09Z
source:         RIPE

% Information related to '81.90.32.0/20AS25058'

route:          81.90.32.0/20
descr:          CMO Internet Dienstleistungen GmbH
origin:         AS25058
mnt-by:         CMO-MNT
created:        2002-07-15T16:19:13Z
last-modified:  2019-09-04T17:11:39Z
source:         RIPE

% Information related to '81.90.32.0/20AS48918'

route:          81.90.32.0/20
descr:          CMO Internet Dienstleistungen GmbH via Globalways
origin:         AS48918
mnt-by:         mnt-globalways
created:        2014-05-27T17:01:21Z
last-modified:  2014-05-27T17:01:21Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.113.2 (BUSA)

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