% 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 '194.151.246.128 - 194.151.246.143'

% Abuse contact for '194.151.246.128 - 194.151.246.143' is 'abuse@kpn.com'

inetnum:        194.151.246.128 - 194.151.246.143
netname:        BRILL
descr:          Koninklijke Brill NV
descr:          Leiden
country:        NL
admin-c:        MB6642-RIPE
tech-c:         EB1555-RIPE
status:         ASSIGNED PA
mnt-by:         AS286-MNT
created:        2004-02-26T12:30:32Z
last-modified:  2004-12-29T19:16:57Z
source:         RIPE # Filtered

person:         Ernie Beek
address:        Koninklijke Brill NV
address:        Loire 124
address:        2491AJ Den Haag
address:        NETHERLANDS
phone:          +31 71 5353500
nic-hdl:        EB1555-RIPE
created:        2004-02-26T12:30:29Z
last-modified:  2020-06-04T09:21:12Z
source:         RIPE # Filtered
mnt-by:         KPN-MNT

person:         M Bouwman
address:        Koninklijke Brill NV
address:        Plantijnstraat 2
address:        2321JC Leiden
address:        NETHERLANDS
phone:          +31 71 5353500
nic-hdl:        MB6642-RIPE
created:        2004-02-26T12:30:29Z
last-modified:  2020-06-04T09:12:49Z
source:         RIPE # Filtered
mnt-by:         KPN-MNT

% Information related to '194.151.224.0/19AS1136'

route:          194.151.224.0/19
descr:          KPN B.V.
origin:         AS1136
mnt-by:         KPN-MNT
created:        2021-05-04T11:34:10Z
last-modified:  2021-05-04T11:34:10Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.120 (SHETLAND)