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

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% The objects are in RPSL format.
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% Information related to '217.17.196.240 - 217.17.196.255'

% Abuse contact for '217.17.196.240 - 217.17.196.255' is 'abuse@iks-jena.de'

inetnum:        217.17.196.240 - 217.17.196.255
netname:        IKSNET
descr:          IKS Service GmbH
descr:          Rudolstaedter Straße 41
descr:          07745 Jena
country:        DE
admin-c:        KU189-RIPE
tech-c:         IKS-RIPE
status:         ASSIGNED PA
mnt-by:         IKS-MNT
created:        2004-01-30T13:25:27Z
last-modified:  2021-11-08T10:19:04Z
source:         RIPE

role:           IKS Service GmbH Contact Role
address:        IKS Service GmbH
address:        Rudolstaedter Str. 41
address:        07745 Jena
address:        Germany
admin-c:        KU189-RIPE
tech-c:         LD26
tech-c:         JS42
tech-c:         LL1991
abuse-mailbox:  abuse@iks-jena.de
nic-hdl:        IKS-RIPE
mnt-by:         IKS-MNT
created:        2008-07-04T14:05:14Z
last-modified:  2023-05-24T20:05:33Z
source:         RIPE # Filtered

person:         Klaus Ulitzsch
address:        IKS Service GmbH
address:        Rudolstaedter Str. 41
address:        07745 Jena
address:        Germany
phone:          +49 3641 573570
fax-no:         +49 3641 573575
nic-hdl:        KU189-RIPE
mnt-by:         IKS-MNT
created:        2012-06-28T12:52:55Z
last-modified:  2023-05-24T20:08:52Z
source:         RIPE # Filtered

% Information related to '217.17.192.0/20AS15725'

route:          217.17.192.0/20
descr:          DE-IKS-JENA
origin:         AS15725
mnt-by:         IKS-MNT
pingable:       217.17.192.196
ping-hdl:       IKS-RIPE
created:        2002-07-19T08:31:39Z
last-modified:  2012-10-05T12:00:17Z
source:         RIPE

role:           IKS Service GmbH Contact Role
address:        IKS Service GmbH
address:        Rudolstaedter Str. 41
address:        07745 Jena
address:        Germany
admin-c:        KU189-RIPE
tech-c:         LD26
tech-c:         JS42
tech-c:         LL1991
abuse-mailbox:  abuse@iks-jena.de
nic-hdl:        IKS-RIPE
mnt-by:         IKS-MNT
created:        2008-07-04T14:05:14Z
last-modified:  2023-05-24T20:05:33Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.114 (BUSA)

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