% 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 '5.77.64.0 - 5.77.127.255'

% Abuse contact for '5.77.64.0 - 5.77.127.255' is 'abuse@postemobile.it'

inetnum:        5.77.64.0 - 5.77.127.255
netname:        IT-POSTEMOBILE-20120613
country:        IT
org:            ORG-PS55-RIPE
admin-c:        DC6400-RIPE
tech-c:         GF7444-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         POSTEMOBILE-IT-MNT
mnt-routes:     POSTEMOBILE-IT-MNT
mnt-routes:     COLT-IT-MNT
created:        2012-06-13T10:26:59Z
last-modified:  2016-09-21T08:40:33Z
source:         RIPE # Filtered

% Information related to '5.77.96.0/19AS3269'

route:          5.77.96.0/19
origin:         AS3269
descr:          PosteItaliane S.p.A.
created:        2026-05-08T13:31:46Z
last-modified:  2026-05-08T13:31:46Z
source:         RIPE
mnt-by:         POSTEMOBILE-IT-MNT

% This query was served by the RIPE Database Query Service version 1.124.1 (DEXTER)