% 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 '156.67.16.0 - 156.67.19.255'

% Abuse contact for '156.67.16.0 - 156.67.19.255' is 'dv.info@swfi.de'

inetnum:        156.67.16.0 - 156.67.19.255
netname:        DE-Finsterwalde-L1
org:            ORG-SFG5-RIPE
descr:          Stadtwerke Finsterwalde GmbH
country:        DE
admin-c:        HR3013-RIPE
tech-c:         HR3013-RIPE
status:         LEGACY
mnt-by:         MNT-SWFI
created:        2016-10-04T10:57:59Z
last-modified:  2016-10-20T07:45:09Z
source:         RIPE

organisation:   ORG-SFG5-RIPE
org-name:       Stadtwerke Finsterwalde GmbH
country:        DE
org-type:       LIR
address:        Langer Damm 14
address:        03238
address:        Finsterwalde
address:        GERMANY
phone:          +4935316700
fax-no:         +493531670121
abuse-c:        AC28496-RIPE
mnt-ref:        MNT-SWFI
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-SWFI
created:        2014-07-11T07:48:32Z
last-modified:  2020-12-16T12:37:27Z
source:         RIPE # Filtered

person:         Harald Richter
address:        Langer Damm 14, 03238 Finsterwalde, Germany
phone:          +4935316700
nic-hdl:        HR3013-RIPE
mnt-by:         MNT-SWFI
created:        2014-07-16T21:56:37Z
last-modified:  2014-07-16T21:56:38Z
source:         RIPE # Filtered

% Information related to '156.67.16.0/22AS59921'

route:          156.67.16.0/22
descr:          Stadtwerke Finsterwalde GmbH
origin:         AS59921
mnt-by:         MNT-SWFI
created:        2016-11-21T08:02:10Z
last-modified:  2016-11-21T08:02:10Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.112.1 (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