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

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '145.136.32.0 - 145.136.47.255'

% Abuse contact for '145.136.32.0 - 145.136.47.255' is 'cert@surfcert.nl'

inetnum:        145.136.32.0 - 145.136.47.255
netname:        NLDA-NET
descr:          Nederlandse Defensie Academie (NLDA)
descr:          Breda
country:        NL
admin-c:        JBJ8-RIPE
tech-c:         JBJ8-RIPE
tech-c:         SNS1-RIPE
status:         LEGACY
mnt-by:         SN-LIR-MNT
mnt-by:         SURF-AUTO-MNT
mnt-irt:        irt-CERT-NL
created:        2014-06-11T08:35:23Z
last-modified:  2025-10-02T17:29:22Z
source:         RIPE

role:           SURF Network Maintainer
address:        Kantoren Hoog Overborch (Hoog Catharijne)
address:        Moreelsepark 48, 3511 EP Utrecht
address:        Postbus 19035, 3501 DA Utrecht
phone:          +31 88 7873000
admin-c:        WB311-RIPE
tech-c:         NO17-RIPE
tech-c:         WB311-RIPE
tech-c:         MK512-RIPE
tech-c:         JO5863-RIPE
tech-c:         MM57501-RIPE
tech-c:         BW4086-RIPE
tech-c:         EV4604-RIPE
nic-hdl:        SNS1-RIPE
abuse-mailbox:  cert@surfcert.nl
mnt-by:         AS1103-MNT
created:        2002-07-09T10:06:06Z
last-modified:  2025-11-05T14:44:07Z
source:         RIPE # Filtered

person:         J B Janssen
address:        Nederlandse Defensie Academie (NLDA)
address:        P.O. Box 90154
address:        NL-4800 RG Breda
address:        The Netherlands
phone:          +31 76 5273787
fax-no:         +31 76 5273566
nic-hdl:        JBJ8-RIPE
mnt-by:         SN-LIR-MNT
created:        2006-07-31T09:36:37Z
last-modified:  2006-07-31T09:36:37Z
source:         RIPE # Filtered

% Information related to '145.136.0.0/15AS1103'

route:          145.136.0.0/15
origin:         AS1103
mnt-by:         AS1103-MNT
created:        2020-04-09T13:18:05Z
last-modified:  2020-04-09T13:19:24Z
source:         RIPE
mnt-routes:     AS1103-MNT
mnt-lower:      AS1103-MNT
descr:          SURFnet CIDR Block II b-a

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