% 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 '81.192.0.0 - 81.192.255.255'

% No abuse contact registered for 81.192.0.0 - 81.192.255.255

inetnum:        81.192.0.0 - 81.192.255.255
netname:        MA-ONPT-20020730
descr:          Office National des Postes et Telecommunications
descr:          PROVIDER LIR
country:        MA
org:            ORG-ONdP1-AFRINIC
admin-c:        SM13-AFRINIC
admin-c:        KA89-AFRINIC
tech-c:         SM13-AFRINIC
status:         ALLOCATED PA
mnt-by:         AFRINIC-HM-MNT
mnt-lower:      ONPT-MNT
source:         AFRINIC # Filtered
parent:         0.0.0.0 - 255.255.255.255

organisation:   ORG-ONdP1-AFRINIC
org-name:       Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM
org-type:       LIR
country:        MA
address:        Division Exploitation et maintenance des PFS
address:        MAROC TELECOM
address:        Avenue Hay annakhil immeuble Riad 2
address:        Rabat
address:        Morocoo
phone:          tel:+212-5372-84314
phone:          tel:+212-37203022
admin-c:        SM13-AFRINIC
admin-c:        KA89-AFRINIC
tech-c:         SM13-AFRINIC
mnt-ref:        AFRINIC-HM-MNT
mnt-ref:        ONPT-MNT
mnt-by:         AFRINIC-HM-MNT
remarks:        data has been transferred from RIPE Whois Database 20050221
source:         AFRINIC # Filtered

person:         Kaddouhi Abdelaziz
address:        Avenue Annakhil Maroc Telecom Rabat
address:        RABAT
address:        Morocco
phone:          tel:+212-5372-85549
nic-hdl:        KA89-AFRINIC
source:         AFRINIC # Filtered
mnt-by:         GENERATED-P6SZUCS7GAJHPELP6WVSRCFIOV8WGIGB-MNT

person:         Sektaoui Marouane
nic-hdl:        SM13-AFRINIC
address:        Maroc Telecom
address:        Rabat
address:        Morocco
phone:          tel:+212-5376-86318
remarks:        Ingenieur Reseaux
remarks:        Service Exploitation des Plates-formes
remarks:        de Services/Division Exploitation et
remarks:        Maintenance des  Plates-formes de
remarks:        Services
mnt-by:         GENERATED-KPHLBILBATGCQACTMADSBE8WVX35UDAG-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