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

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% The objects are in RPSL format.
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% Note: this output has been filtered.
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% Information related to '84.80.0.0 - 84.80.127.255'

% Abuse contact for '84.80.0.0 - 84.80.127.255' is 'abuse@kpn.com'

inetnum:        84.80.0.0 - 84.80.127.255
netname:        KPN
descr:          Customers
country:        NL
admin-c:        KPN-RIPE
tech-c:         KPN-RIPE
status:         ASSIGNED PA
mnt-by:         KPN-MNT
remarks:        Please mail abuse issues to: abuse@kpn.com
created:        2024-04-23T07:38:21Z
last-modified:  2024-04-23T07:38:21Z
source:         RIPE # Filtered

role:           KPN Internet
address:        KPN
address:        P.O. Box 30000
address:        2500 GA Den Haag
address:        Netherlands
abuse-mailbox:  abuse@kpn.com
remarks:        trouble: +----------------------------------------------------+
remarks:        trouble: | Peering/operational issues: peering-office@kpn.com |
remarks:        trouble: +----------------------------------------------------+
admin-c:        JZ1998-RIPE
admin-c:        PBOS-RIPE
tech-c:         BC70-RIPE
tech-c:         MH5996-RIPE
tech-c:         JDM1-RIPE
remarks:        ==========================================================
remarks:        Role Object for KPN Internet Solutions
remarks:        For urgent operational issues, change requests, routing
remarks:        policies, etc use the email address "peering-office@kpn.com"
remarks:        For portscans, DoS attacks and spam complaints, please
remarks:        use the email address "abuse@kpn.com".
remarks:        Please include all headers and logging where appropriate.
remarks:        For domain changes use the email address "domain@kpn.com"
remarks:        ==========================================================
nic-hdl:        KPN-RIPE
mnt-by:         KPN-MNT
created:        2004-08-11T08:57:52Z
last-modified:  2023-03-16T07:17:53Z
source:         RIPE # Filtered

% Information related to '84.80.0.0/16AS1136'

route:          84.80.0.0/16
descr:          KPN BV
origin:         AS1136
mnt-by:         KPN-MNT
created:        2024-03-04T07:36:39Z
last-modified:  2024-03-04T07:36:39Z
source:         RIPE

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

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