Whois

% 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 '81.23.243.0 - 81.23.243.255'

% Abuse contact for '81.23.243.0 - 81.23.243.255' is '[email protected]'

inetnum:        81.23.243.0 - 81.23.243.255
netname:        LD4Unity-NET-02
country:        NL
admin-c:        LA7705-RIPE
tech-c:         LA7705-RIPE
status:         ASSIGNED PA
mnt-by:         LD4UNITY-MNT
created:        2019-12-23T11:05:16Z
last-modified:  2019-12-23T11:05:16Z
source:         RIPE

% Information related to '81.23.243.0/24AS42433'

route:          81.23.243.0/24
origin:         AS42433
mnt-by:         LD4UNITY-MNT
created:        2019-12-23T10:49:18Z
last-modified:  2019-12-23T10:49:18Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.118.1 (BUSA)