% 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 '31.170.104.0 - 31.170.111.255'

% Abuse contact for '31.170.104.0 - 31.170.111.255' is 'abuse@as29141.net'

inetnum:        31.170.104.0 - 31.170.111.255
netname:        DE-BNK-20110330
country:        DE
org:            ORG-BKGC1-RIPE
admin-c:        DB-RIPE
tech-c:         DB-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-BNK
mnt-lower:      PROVIDERDIENSTE-MNT
mnt-lower:      MNT-BNK
mnt-routes:     PROVIDERDIENSTE-MNT
created:        2011-03-30T12:53:42Z
last-modified:  2019-11-15T10:06:09Z
source:         RIPE # Filtered

organisation:   ORG-BKGC1-RIPE
org-name:       Bradler & Krantz GmbH & Co. KG
country:        DE
org-type:       LIR
address:        KURT-SCHUMACHER-PLATZ 8
address:        44787
address:        BOCHUM
address:        GERMANY
phone:          +492346870390
fax-no:         +4923468703955
admin-c:        DB-RIPE
admin-c:        DB-RIPE
admin-c:        JOKR-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-BNK
mnt-ref:        PROVIDERDIENSTE-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-BNK
abuse-c:        BN2043-RIPE
created:        2005-04-14T15:51:23Z
last-modified:  2020-12-16T13:34:32Z
source:         RIPE # Filtered

person:         Daniel Bradler
address:        Bradler & Krantz GmbH & Co KG
address:        Kurt-Schumacher-Platz 8
address:        44787 Bochum
address:        Germany
phone:          +49-234-6870390
fax-no:         +49-234-68703955
nic-hdl:        DB-RIPE
created:        2002-08-24T08:13:18Z
last-modified:  2019-02-19T07:34:47Z
source:         RIPE # Filtered
mnt-by:         MNT-BNK

% Information related to '31.170.104.0/21AS29141'

route:          31.170.104.0/21
descr:          Routed by AS29141
origin:         AS29141
mnt-by:         MNT-BNK
remarks:        ###########################################
remarks:        In case of abuse, please send an e-mail to
remarks:        abuse@as29141.net
remarks:        ###########################################
created:        2011-03-30T13:00:23Z
last-modified:  2011-09-13T09:11:46Z
source:         RIPE

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

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