% APNIC found the following authoritative answer from: whois.ripe.net

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% The objects are in RPSL format.
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% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '80.51.57.0 - 80.51.57.255'

% Abuse contact for '80.51.57.0 - 80.51.57.255' is 'cert.opl@orange.com'

inetnum:        80.51.57.0 - 80.51.57.255
netname:        SPOLDZIELNIA-MIESZKANIOWA-POLNOC
descr:          Spoldzielnia Mieszkaniowa Polnoc
descr:          ul. Jaroslawa Iwaszkiewicza 8/240
descr:          42-200 Czestochowa
country:        PL
admin-c:        PT1247-RIPE
admin-c:        WJ82-RIPE
tech-c:         GM2584-RIPE
tech-c:         WJ149-RIPE
status:         ASSIGNED PA
mnt-by:         TPNET
created:        2003-02-14T09:02:30Z
last-modified:  2004-07-08T10:50:26Z
source:         RIPE

person:         Gromelski Marian
address:        Spoldzielnia Mieszkaniowa Polnoc
address:        ul. Michalowskiego 17
address:        42-200 Czestochowa
address:        POLAND
phone:          +48 34 3622755
nic-hdl:        GM2584-RIPE
mnt-by:         TPNET
created:        2003-11-28T14:56:42Z
last-modified:  2004-06-15T15:11:33Z
source:         RIPE # Filtered

person:         Palka Teresa
address:        Spoldzielnia Mieszkaniowa  Polnoc
address:        ul. Michalowskiego 17
address:        42-200 Czestochowa
address:        POLAND
phone:          +48 34 3220787
nic-hdl:        PT1247-RIPE
mnt-by:         TPNET
created:        2003-11-28T14:56:39Z
last-modified:  2004-06-15T13:59:08Z
source:         RIPE

person:         Wilk Jakub
address:        Spoldzielnia Mieszkaniowa Polnoc
address:        ul. Michalowskiego 17
address:        42-200 Czestochowa
address:        POLAND
phone:          +48 34 3220735
phone:          +48 34 3220717
nic-hdl:        WJ149-RIPE
mnt-by:         TPNET
created:        2003-11-28T14:56:43Z
last-modified:  2004-06-15T15:07:50Z
source:         RIPE # Filtered

person:         Wojtal Jadwiga
address:        Spoldzielnia Mieszkaniowa Polnoc
address:        ul. Michalowskiego 17
address:        42-200 Czestochowa
address:        POLAND
phone:          +48 34 3220787
nic-hdl:        WJ82-RIPE
mnt-by:         TPNET
created:        2003-11-28T14:56:40Z
last-modified:  2004-06-15T14:19:59Z
source:         RIPE

% Information related to '80.48.0.0/14AS5617'

route:          80.48.0.0/14
descr:          Orange Polska SA
descr:          for abuse: abuse@tpnet.pl
origin:         AS5617
mnt-by:         AS5617-MNT
created:        2014-08-13T12:11:18Z
last-modified:  2014-08-13T12:11:18Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.112 (DEXTER)

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