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

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% Information related to '81.31.37.176 - 81.31.37.223'

% Abuse contact for '81.31.37.176 - 81.31.37.223' is 'janicek@tech4bet.com'

inetnum:        81.31.37.176 - 81.31.37.223
netname:        TECH4BET-1-MAI-CZ
org:            ORG-TS636-RIPE
descr:          Tech4Bet, s.r.o.
descr:          server hosting MAI DC Brno
country:        CZ
admin-c:        RJ5299-RIPE
tech-c:         RJ5299-RIPE
status:         ASSIGNED PA
mnt-by:         MASTER-MNT
created:        2023-05-03T10:58:54Z
last-modified:  2023-05-03T10:58:54Z
source:         RIPE

organisation:   ORG-TS636-RIPE
org-name:       Tech4Bet, s.r.o.
org-type:       OTHER
address:        Kacakova Lhota 71
address:        506 01 Kacakova Lhota
address:        Czech Republic
phone:          +420724554590
mnt-ref:        MASTER-MNT
mnt-ref:        MASTER-MNT
mnt-by:         MASTER-MNT
admin-c:        TC7092-RIPE
tech-c:         TC7092-RIPE
abuse-c:        TC7092-RIPE
created:        2023-05-03T10:56:15Z
last-modified:  2023-05-03T10:56:15Z
source:         RIPE # Filtered

person:         Radek Janicek
address:        Tech4Bet, s.r.o.
address:        Kacakova Lhota 71
address:        506 01 Kacakova Lhota
address:        CZ
phone:          +420724554590
mnt-by:         MASTER-MNT
nic-hdl:        RJ5299-RIPE
created:        2023-05-03T10:57:50Z
last-modified:  2023-05-03T10:57:50Z
source:         RIPE # Filtered

% Information related to '81.31.32.0/20AS24971'

route:          81.31.32.0/20
descr:          MASTER-NET-1
origin:         AS24971
mnt-by:         MASTER-MNT
created:        2002-06-17T11:04:51Z
last-modified:  2002-06-17T11:04:51Z
source:         RIPE

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

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