% 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 '80.17.233.80 - 80.17.233.95'

% Abuse contact for '80.17.233.80 - 80.17.233.95' is 'abuse@business.telecomitalia.it'

inetnum:        80.17.233.80 - 80.17.233.95
netname:        NETSIEL
descr:          NETSIEL SPA
country:        IT
admin-c:        AP496-RIPE
tech-c:         AP496-RIPE
status:         ASSIGNED PA
mnt-by:         INTERB-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-21T22:57:18Z
source:         RIPE # Filtered

person:         Antonio Polidoro
address:        Telecomitalia s.p.a.
address:        VIA ORIOLO ROMANO 257
address:        I- 00189 Roma RM
address:        Italy
phone:          +39 06 36879367
fax-no:         +39 06 36879367
nic-hdl:        AP496-RIPE
created:        1970-01-01T00:00:00Z
last-modified:  2013-10-23T08:16:00Z
source:         RIPE
mnt-by:         FULCOM-MNT-RIPE

% Information related to '80.17.0.0/16AS3269'

route:          80.17.0.0/16
descr:          INTERBUSINESS
origin:         AS3269
remarks:        ************************************************
remarks:        * Pay attention *
remarks:        * Any communication sent to email different *
remarks:        * from the following will be ignored! *
remarks:        * Any abuse reports, please send them to *
remarks:        * abuse@business.telecomitalia.it *
remarks:        ************************************************
mnt-by:         INTERB-MNT
created:        2019-05-14T06:01:51Z
last-modified:  2019-05-14T06:01:51Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.120 (ABERDEEN)