% 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 '2a02:a440::/27'

% Abuse contact for '2a02:a440::/27' is 'abuse@kpn.com'

inet6num:       2a02:a440::/27
netname:        KPN-CM
descr:          KPN CM
country:        NL
admin-c:        KZI-RIPE
tech-c:         KZI-RIPE
status:         ALLOCATED-BY-LIR
mnt-by:         KPN-MNT
created:        2020-12-08T08:10:54Z
last-modified:  2020-12-08T08:10:54Z
source:         RIPE

role:           KPN Zakelijk Internet
address:        NL
admin-c:        KPN-RIPE
tech-c:         KPN-RIPE
remarks:        ===============================================
remarks:        For portscans, DoS attacks and spam complaints,
remarks:        please use the email address "abuse@kpn.com
remarks:        ===============================================
nic-hdl:        KZI-RIPE
mnt-by:         KPN-MNT
created:        2007-09-21T07:53:51Z
last-modified:  2023-06-05T06:47:35Z
source:         RIPE # Filtered

% Information related to '2a02:a400::/25AS1136'

route6:         2a02:a400::/25
descr:          KPN B.V.
origin:         AS1136
mnt-by:         KPN-MNT
mnt-routes:     KPN-MNT
created:        2015-09-01T11:26:27Z
last-modified:  2015-09-01T11:26:27Z
source:         RIPE # Filtered

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

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