% 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 '81.192.192.0 - 81.192.192.255'

% No abuse contact registered for 81.192.192.0 - 81.192.192.255

inetnum:        81.192.192.0 - 81.192.192.255
netname:        IAM
descr:          Adsl maroc telecom
country:        MA
admin-c:        em1685-AFRINIC
tech-c:         OA78-AFRINIC
status:         ASSIGNED PA
remarks:        data has been transferred from RIPE Whois Database 20050221
mnt-by:         ONPT-MNT
source:         AFRINIC # Filtered
parent:         81.192.0.0 - 81.192.255.255

person:         Oumlil Aniss
address:        Direction Internet ,division operation  Rabat
address:        Maroc
phone:          tel:+212-37680296
fax-no:         tel:+212-37680236
nic-hdl:        OA78-AFRINIC
remarks:        data has been transferred from RIPE Whois Database 20050221
mnt-by:         GENERATED-46TF0ARNEP6RCSUTSPDALU3DXKKHXBK3-MNT
source:         AFRINIC # Filtered

person:         elasri merouane
address:        rabat
address:        maroc
phone:          tel:+212-22850543
fax-no:         tel:+212-22854841
nic-hdl:        em1685-AFRINIC
remarks:        data has been transferred from RIPE Whois Database 20050221
mnt-by:         GENERATED-8ABW0SSEN5MUMT1DJFJWCYINTKILOS2Q-MNT
source:         AFRINIC # Filtered

% Information related to '81.192.0.0/16AS36903'

route:          81.192.0.0/16
descr:          route object
origin:         AS36903
mnt-by:         ONPT-MNT
source:         AFRINIC # Filtered

% Information related to '81.192.0.0/16AS6713'

route:          81.192.0.0/16
descr:          route object
origin:         AS6713
mnt-by:         ONPT-MNT
source:         AFRINIC # Filtered

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