Report phishing to Kleissner

Kleissner is a hosting provider. Their Autonomous System (AS) Number is 204007.

Found a phishing site (or other fraudulent/malicious content) registered with Kleissner? The best way to report a URL to Kleissner is to send them an email at:

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% Information related to 'AS203889 - AS205662'

as-block:       AS203889 - AS205662
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2024-11-12T15:22:00Z
last-modified:  2024-11-12T15:22:00Z
source:         RIPE

% Information related to 'AS204007'

% Abuse contact for 'AS204007' is 'abuse@kleissner.investments'

aut-num:        AS204007
as-name:        Kleissner
org:            ORG-KIS7-RIPE
import:         from AS39392 accept ANY
export:         to AS39392 announce AS204007
import:         from AS174 accept ANY
export:         to AS174 announce AS204007
mp-import:      afi ipv6.unicast from AS39392 accept ANY
mp-export:      afi ipv6.unicast to AS39392 announce AS204007
mp-import:      afi ipv6.unicast from AS174 accept ANY
mp-export:      afi ipv6.unicast to AS174 announce AS204007
admin-c:        DT7922-RIPE
tech-c:         DT7922-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         cz-kleissner-1-mnt
created:        2018-04-11T14:41:08Z
last-modified:  2020-05-09T10:07:02Z
source:         RIPE

organisation:   ORG-KIS7-RIPE
org-name:       Kleissner Investments s.r.o.
country:        CZ
org-type:       LIR
address:        Na strzi 1702/65
address:        140 00
address:        Praha 4
address:        CZECH REPUBLIC
phone:          +420774346764
admin-c:        DT7922-RIPE
tech-c:         DT7922-RIPE
abuse-c:        AR38939-RIPE
mnt-ref:        cz-kleissner-1-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         cz-kleissner-1-mnt
created:        2017-01-13T11:59:12Z
last-modified:  2020-12-16T13:03:49Z
source:         RIPE # Filtered

person:         Peter Kleissner
address:        Na strzi 1702/65
address:        140 00
address:        Praha 4
address:        CZECH REPUBLIC
phone:          +420 222 191 509
nic-hdl:        DT7922-RIPE
mnt-by:         cz-kleissner-1-mnt
created:        2017-01-13T11:59:12Z
last-modified:  2025-07-26T12:11:20Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.119 (ABERDEEN)

% Query time: 398 msec
% WHEN: Tue Nov 04 08:02:36 UTC 2025