% 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 '103.23.255.0 - 103.23.255.255'

% Abuse contact for '103.23.255.0 - 103.23.255.255' is 'jpnetworkbd@gmail.com'

inetnum:        103.23.255.0 - 103.23.255.255
netname:        amarnet
descr:          amarnet_system
country:        BD
admin-c:        ANSA75-AP
tech-c:         ANSA75-AP
abuse-c:        AJ566-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-JPNETWORKBD-BD
mnt-irt:        IRT-JPNETWORKBD-BD
last-modified:  2024-03-29T10:03:39Z
source:         APNIC

irt:            IRT-JPNETWORKBD-BD
address:        32/1/A, Chowdhurypara, Malibagh, Dhaka-1219, Dhaka Dhaka 1219
e-mail:         jpnetworkbd@gmail.com
abuse-mailbox:  jpnetworkbd@gmail.com
admin-c:        JNBA1-AP
tech-c:         JNBA1-AP
auth:           # Filtered
remarks:        jpnetworkbd@gmail.com was validated on 2026-08-01
mnt-by:         MAINT-JPNETWORKBD-BD
last-modified:  2026-08-01T18:38:55Z
source:         APNIC

role:           ABUSE JPNETWORKBDBD
country:        ZZ
address:        32/1/A, Chowdhurypara, Malibagh, Dhaka-1219, Dhaka Dhaka 1219
phone:          +000000000
e-mail:         jpnetworkbd@gmail.com
admin-c:        JNBA1-AP
tech-c:         JNBA1-AP
nic-hdl:        AJ566-AP
remarks:        Generated from irt object IRT-JPNETWORKBD-BD
remarks:        jpnetworkbd@gmail.com was validated on 2026-08-01
abuse-mailbox:  jpnetworkbd@gmail.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-08-01T18:39:06Z
source:         APNIC

role:           Amar Net System administrator
address:        Ka - 42/2, (3rd Floor), Joar Shahara, Lichubagan, Vatara, Dhaka-1229.
address:
address:
country:        BD
phone:          +8801678629292
fax-no:         +8801678629292
e-mail:         ashiqur@amarnetsystem.com
admin-c:        ANSA75-AP
tech-c:         ANSA75-AP
nic-hdl:        ANSA75-AP
mnt-by:         MAINT-AMARNETSYSTEM-BD
last-modified:  2018-12-29T10:56:05Z
source:         APNIC

% Information related to '103.23.255.0/24AS135019'

route:          103.23.255.0/24
origin:         AS135019
descr:          amarnet_system
mnt-by:         MAINT-JPNETWORKBD-BD
last-modified:  2024-03-29T09:47:13Z
source:         APNIC

% Information related to '103.23.255.0/24AS150379'

route:          103.23.255.0/24
origin:         AS150379
descr:          MD.POLASH KHAN
                32/1/A, Chowdhurypara, Malibagh, Dhaka-1219
mnt-by:         MAINT-JPNETWORKBD-BD
last-modified:  2023-07-03T13:19:37Z
country:        BD
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)