% 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 '103.31.11.0 - 103.31.11.255'

% Abuse contact for '103.31.11.0 - 103.31.11.255' is 'abuse@discoverynetbd.com'

inetnum:        103.31.11.0 - 103.31.11.255
netname:        DISCOVERY-INTERNET-BD
descr:          Discovery Internet | Narsingdi
country:        BD
admin-c:        DIA11-AP
tech-c:         DIA11-AP
abuse-c:        DIA11-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-DISCOVERY-INTERNET-BD
mnt-irt:        IRT-DISCOVERY-INTERNET-BD
last-modified:  2024-04-05T08:07:32Z
source:         APNIC

irt:            IRT-DISCOVERY-INTERNET-BD
address:        Haji Siraj Tower (3rd Floor), Madhabdi Bazar, Madhabdi, Narsindi Narsindi 1604
e-mail:         noc@discoverynetbd.com
abuse-mailbox:  abuse@discoverynetbd.com
admin-c:        DIA11-AP
tech-c:         DIA11-AP
auth:           # Filtered
remarks:        abuse@discoverynetbd.com was validated on 2025-07-13
remarks:        noc@discoverynetbd.com was validated on 2025-12-05
mnt-by:         MAINT-DISCOVERY-INTERNET-BD
last-modified:  2025-12-05T15:08:51Z
source:         APNIC

role:           Discovery Internet administrator
address:        N.S. Tower (Ground Floor), Madhabdi Bazar, Madhabdi, Narsindi Narsindi 1604
country:        BD
phone:          +8801712777420
fax-no:         +8801712777420
e-mail:         report@discoverynetbd.com
admin-c:        DIA11-AP
tech-c:         DIA11-AP
nic-hdl:        DIA11-AP
mnt-by:         MAINT-DISCOVERY-INTERNET-BD
last-modified:  2018-08-06T15:35:04Z
source:         APNIC

% Information related to '103.31.11.0/24AS134562'

route:          103.31.11.0/24
origin:         AS134562
descr:          Discovery INTERNET
mnt-by:         MAINT-DISCOVERY-INTERNET-BD
last-modified:  2024-04-05T08:09:45Z
source:         APNIC

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