% 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 '2a01:5240::/29'

% Abuse contact for '2a01:5240::/29' is 'abuse@tele-ag.de'

inet6num:       2a01:5240::/29
netname:        DE-TELEAG-20120601
country:        DE
org:            ORG-TA633-RIPE
admin-c:        TAH63-RIPE
tech-c:         TAH63-RIPE
status:         ALLOCATED-BY-RIR
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-TELEAG
mnt-routes:     MNT-TELEAG
created:        2016-03-02T13:32:15Z
last-modified:  2018-05-22T10:01:58Z
source:         RIPE # Filtered

organisation:   ORG-TA633-RIPE
org-name:       TELE AG
country:        DE
org-type:       LIR
address:        Wilhelm-Sammet-Strasse 37
address:        04157
address:        Leipzig
address:        GERMANY
phone:          +493415238010
fax-no:         +4934152380199
admin-c:        DS21868-RIPE
admin-c:        MD25412-RIPE
admin-c:        FA4883-RIPE
mnt-ref:        MNT-TELEAG
mnt-ref:        RIPE-NCC-HM-MNT
tech-c:         MD25412-RIPE
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-TELEAG
abuse-c:        TAA73-RIPE
created:        2012-05-31T11:16:34Z
last-modified:  2023-03-31T07:12:36Z
source:         RIPE # Filtered

role:           TELE AG Hostmaster
address:        TELE AG
address:        Wilhelm-Sammet-Straße 37
address:        D-04157 Leipzig
address:        Germany
phone:          +49 341 523801-0
fax-no:         +49 341 523801-99
nic-hdl:        TAH63-RIPE
admin-c:        FA4883-RIPE
admin-c:        MW8340-RIPE
tech-c:         MD25412-RIPE
tech-c:         DS21868-RIPE
mnt-by:         MNT-TELEAG
created:        2018-05-22T09:43:23Z
last-modified:  2023-05-05T10:13:01Z
source:         RIPE # Filtered

% Information related to '2a01:5240::/29AS58243'

route6:         2a01:5240::/29
descr:          TELE AG IPv6 SPACE
origin:         AS58243
mnt-by:         MNT-TELEAG
created:        2016-03-18T20:39:51Z
last-modified:  2016-03-18T20:39:51Z
source:         RIPE

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

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