% 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 '77.20.0.0 - 77.21.255.255'

% Abuse contact for '77.20.0.0 - 77.21.255.255' is 'abuse.de@vodafone.com'

inetnum:        77.20.0.0 - 77.21.255.255
netname:        KABEL-DEUTSCHLAND-CUSTOMER-SERVICES-16
descr:          Kabel Deutschland Breitband Customer 16
country:        DE
admin-c:        KDG40-RIPE
tech-c:         KDG40-RIPE
status:         ASSIGNED PA
mnt-by:         MNT-KABELDEUTSCHLAND
mnt-lower:      MNT-KABELDEUTSCHLAND
mnt-routes:     MNT-KABELDEUTSCHLAND
created:        2008-05-05T12:19:32Z
last-modified:  2015-06-09T14:48:07Z
source:         RIPE

role:           Kabel Deutschland RIPE
address:        Vodafone Kabel Deutschland GmbH
address:        Germaniastr. 14-17
address:        12099 Berlin
address:        Germany
admin-c:        FM464-RIPE
admin-c:        MM45323-RIPE
tech-c:         MM45323-RIPE
abuse-mailbox:  abuse.de@vodafone.com
nic-hdl:        KDG40-RIPE
mnt-by:         MNT-KABELDEUTSCHLAND
created:        2015-06-06T09:42:03Z
last-modified:  2019-10-28T12:25:04Z
source:         RIPE # Filtered

% Information related to '77.20.252.0/22AS31334'

route:          77.20.252.0/22
descr:          Kabeldeutschland Route
origin:         AS31334
mnt-by:         MNT-KABELDEUTSCHLAND
created:        2017-02-08T08:32:49Z
last-modified:  2017-02-08T08:32:49Z
source:         RIPE

% Information related to '77.20.252.0/22AS3209'

route:          77.20.252.0/22
origin:         AS3209
descr:          VFKD Route
mnt-routes:     ARCOR-MNT
mnt-by:         MNT-KABELDEUTSCHLAND
mnt-by:         MNT-AS31334
created:        2020-06-16T09:20:05Z
last-modified:  2020-06-16T09:20:05Z
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