% APNIC found the following authoritative answer from: whois.afrinic.net

% This is the AfriNIC Whois server.
% The AFRINIC whois database is subject to  the following terms of Use. See https://afrinic.net/whois/terms

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

% Information related to '41.66.96.0 - 41.66.127.255'

% No abuse contact registered for 41.66.96.0 - 41.66.127.255

inetnum:        41.66.96.0 - 41.66.127.255
netname:        AT-MASSRESPONSE
descr:          Mass Response Service GmbH
country:        AT
admin-c:        FP9-AFRINIC
admin-c:        FP10-AFRINIC
tech-c:         FP9-AFRINIC
tech-c:         FP10-AFRINIC
status:         ASSIGNED PA
remarks:        Mass Response Service GmbH
mnt-by:         MR-BCS-MNT
source:         AFRINIC # Filtered
parent:         41.66.64.0 - 41.66.127.255

person:         Franz Pichler
address:        Mass Response Service GmbH
address:        DC Tower, Donau-City-Straße 7
address:        Vienna 1220
address:        Austria
phone:          tel:+43-1-2702825
nic-hdl:        FP10-AFRINIC
source:         AFRINIC # Filtered
mnt-by:         GENERATED-DSTYQ3Z0YW40HDB2ONKKJNMRX2TAKTJX-MNT

person:         Florian Parnigoni
address:        Mass Response Service GmbH
address:        DC Tower, Donau-City-Straße 7
address:        Vienna 1220
address:        Austria
phone:          tel:+43-1-2702825
nic-hdl:        FP9-AFRINIC
source:         AFRINIC # Filtered
mnt-by:         GENERATED-F1HJRRQQ0YJLKUILJZEVM7A7DWYEU0GW-MNT

% Information related to '41.66.64.0/18AS51265'

route:          41.66.64.0/18
origin:         AS51265
descr:          Mass Response Service GmbH
mnt-by:         MR-BCS-MNT
source:         AFRINIC # Filtered

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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
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-d	Associated reverse domain