% 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 '192.171.5.0 - 192.171.5.255'

% Abuse contact for '192.171.5.0 - 192.171.5.255' is 'esanic@esa.int'

inetnum:        192.171.5.0 - 192.171.5.255
netname:        ESA-ESRIN-DMZ-NET13
descr:          European Space Research and Technology Centre
descr:          Via Galileo Galilei, 1, 00044 Frascati RM, Italy
country:        IT
geoloc:         41.82723423302929 12.672782742475697
admin-c:        ENIC2-RIPE
tech-c:         ESA3-RIPE
status:         LEGACY
remarks:        -------------------------------------------------------
remarks:        All communication must be directed to esanic@esa.int
remarks:        Fax and phone are only to be used as backup.
remarks:        Office Hours are : 08:30 - 17:15 CET.
remarks:        -------------------------------------------------------
mnt-by:         ESANIC-MNT
created:        2023-04-06T09:21:53Z
last-modified:  2023-04-06T09:21:53Z
source:         RIPE

% Information related to '192.171.5.0/24AS288'

route:          192.171.5.0/24
descr:          ESA ESRIN
origin:         AS288
remarks:        -------------------------------------------------------
remarks:        All communication must be directed to esanic@esa.int
remarks:        Phone are only to be used as backup. +39 06 94188688
remarks:        Office Hours are : 08:30 - 17:15 CET.
remarks:        -------------------------------------------------------
mnt-by:         ESANIC-MNT
created:        2001-10-15T12:26:00Z
last-modified:  2015-09-17T13:25:34Z
source:         RIPE

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