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

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to '203.185.128.0 - 203.185.159.255'

% Abuse contact for '203.185.128.0 - 203.185.159.255' is 'noc@thaisarn.net.th'

inetnum:        203.185.128.0 - 203.185.159.255
netname:        SCHOOLNET-TH
descr:          Non-Commercial Internet Providers
descr:          For School in Thailand
descr:          National Electronics and Computer Technology Center(NECTEC)
country:        TH
org:            ORG-NEAC1-AP
admin-c:        YL73-AP
tech-c:         YL73-AP
abuse-c:        AN946-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-NECTEC-AP
mnt-irt:        IRT-NECTEC-TH
last-modified:  2020-07-29T13:16:15Z
source:         APNIC

irt:            IRT-NECTEC-TH
address:        National Electronic and Computer Technology Center (NECTEC)
address:        11th Floor , Bangkok Thai Tower,
address:        Phayathai, Bangkok
e-mail:         noc@thaisarn.net.th
abuse-mailbox:  noc@thaisarn.net.th
admin-c:        AA6-AP
tech-c:         NM25-AP
tech-c:         SS3770-AP
auth:           # Filtered
remarks:        noc@thaisarn.net.th is invalid
mnt-by:         MAINT-NECTEC-AP
last-modified:  2024-08-14T13:09:44Z
source:         APNIC

organisation:   ORG-NEAC1-AP
org-name:       National Electronics and Computer Technology Center
org-type:       LIR
country:        TH
address:        112 Thailand Science Park
address:        Phahon Yothin Road
address:        Klong 1
phone:          +66-2564-6900
fax-no:         +66-2564-6901
e-mail:         info@nectec.or.th
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:46Z
source:         APNIC

role:           ABUSE NECTECTH
country:        ZZ
address:        National Electronic and Computer Technology Center (NECTEC)
address:        11th Floor , Bangkok Thai Tower,
address:        Phayathai, Bangkok
phone:          +000000000
e-mail:         noc@thaisarn.net.th
admin-c:        AA6-AP
tech-c:         NM25-AP
tech-c:         SS3770-AP
nic-hdl:        AN946-AP
remarks:        Generated from irt object IRT-NECTEC-TH
remarks:        noc@thaisarn.net.th is invalid
abuse-mailbox:  noc@thaisarn.net.th
mnt-by:         APNIC-ABUSE
last-modified:  2024-08-14T13:11:24Z
source:         APNIC

person:         Yaowalak Limkongko
address:        11 th floor, Bangkok Thai Tower,
address:        Phayathai, Bangkok
country:        TH
phone:          +66 2 6427077
fax-no:         +66 2 6427064
e-mail:         yak@nectec.or.th
nic-hdl:        YL73-AP
mnt-by:         MAINT-NECTEC-AP
last-modified:  2008-09-04T07:29:52Z
source:         APNIC

% Information related to '203.185.129.0/24AS38296'

route:          203.185.129.0/24
origin:         AS38296
descr:          National Electronics and Computer Technology Center
                112 Thailand Science Park
                Phahon Yothin Road
                Klong 1
mnt-by:         MAINT-NECTEC-AP
last-modified:  2022-07-21T04:14:35Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-AU4)