% 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 '203.156.96.0 - 203.156.103.255'

% Abuse contact for '203.156.96.0 - 203.156.103.255' is 'administrator@jastel.co.th'

inetnum:        203.156.96.0 - 203.156.103.255
netname:        JASTEL-NETWORK-TH
descr:          JasTel Network
descr:          Jasmine International Tower
descr:          200 Moo 4 Cheangwattana Rd
country:        TH
org:            ORG-JN1-AP
admin-c:        JNna1-AP
tech-c:         JNna1-AP
abuse-c:        AJ451-AP
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JASTEL-NETWORK-TH
mnt-routes:     MAINT-JASTEL-NETWORK-TH
mnt-irt:        IRT-JASTEL-NETWORK-TH
last-modified:  2024-07-31T03:21:20Z
source:         APNIC

irt:            IRT-JASTEL-NETWORK-TH
address:        Jasmine International Tower 200 Moo 4 Cheangwatta rd., Pakkret, Nonthaburi 11120
e-mail:         administrator@jastel.co.th
abuse-mailbox:  administrator@jastel.co.th
admin-c:        JNna1-AP
tech-c:         JNna1-AP
auth:           # Filtered
remarks:        administrator@jastel.co.th
remarks:        administrator@jastel.co.th was validated on 2025-11-11
mnt-by:         MAINT-JASTEL-NETWORK-TH
mnt-by:         MAINT-JASTEL-NETWORK-TH
last-modified:  2025-11-24T03:14:21Z
source:         APNIC

organisation:   ORG-JN1-AP
org-name:       JasTel Network Company Limited
org-type:       LIR
country:        TH
address:        Jasmine International Tower
address:        200 Moo 4 Cheangwattana Rd
address:        Pakkred
phone:          +6621003168
fax-no:         +6621003184
e-mail:         administrator@jastel.co.th
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-03-28T12:55:15Z
source:         APNIC

role:           ABUSE JASTELNETWORKTH
country:        ZZ
address:        Jasmine International Tower 200 Moo 4 Cheangwatta rd., Pakkret, Nonthaburi 11120
phone:          +000000000
e-mail:         administrator@jastel.co.th
admin-c:        JNna1-AP
tech-c:         JNna1-AP
nic-hdl:        AJ451-AP
remarks:        Generated from irt object IRT-JASTEL-NETWORK-TH
remarks:        administrator@jastel.co.th was validated on 2025-11-11
abuse-mailbox:  administrator@jastel.co.th
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-11T14:05:15Z
source:         APNIC

role:           JASTEL NETWORK  - network administrator
address:        Jamine International Tower 200 Moo 4 Cheangwatta rd., Pakkret, Nonthaburi 11120
country:        TH
phone:          +66-2-1003358
fax-no:         +66-2-1003184
e-mail:         administrator@jastel.co.th
admin-c:        JNna1-AP
tech-c:         JNna1-AP
nic-hdl:        JNna1-AP
mnt-by:         MAINT-JASTEL-NETWORK-TH
last-modified:  2016-09-02T02:42:04Z
source:         APNIC

% Information related to '203.156.101.0/24AS55423'

route:          203.156.101.0/24
origin:         AS55423
descr:          JasTel Network Company Limited
                Jasmine International Tower
                200 Moo 4 Cheangwattana Rd
                Pakkred
mnt-by:         MAINT-JASTEL-NETWORK-TH
last-modified:  2025-11-21T06:37:28Z
source:         APNIC

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