% 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 '103.249.56.0 - 103.249.56.255'

% Abuse contact for '103.249.56.0 - 103.249.56.255' is 'mizan@lbsbd.com'

inetnum:        103.249.56.0 - 103.249.56.255
netname:        LANKABANGLA-BD
descr:          LankaBangla Information System Limited
country:        BD
org:            ORG-LISL1-AP
admin-c:        LISL1-AP
tech-c:         LISL1-AP
abuse-c:        AL1483-AP
status:         ASSIGNED PORTABLE
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:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-routes:     MAINT-LANKABANGLA-BD
mnt-irt:        IRT-LANKABANGLA-BD
last-modified:  2020-06-22T05:32:58Z
source:         APNIC

irt:            IRT-LANKABANGLA-BD
address:        AA Bhaban (Level 5), 23 Motijheel C/A, Dhaka-1000, Dhaka 1000
e-mail:         mizan@lbsbd.com
abuse-mailbox:  mizan@lbsbd.com
admin-c:        LISL1-AP
tech-c:         LISL1-AP
auth:           # Filtered
remarks:        mizan@lbsbd.com was validated on 2026-08-05
mnt-by:         MAINT-LANKABANGLA-BD
last-modified:  2026-08-05T02:47:21Z
source:         APNIC

organisation:   ORG-LISL1-AP
org-name:       LankaBangla Information System Limited
org-type:       LIR
country:        BD
address:        AA Bhaban (Level 5), 23 Motijheel C/A
address:        Dhaka-1000
phone:          +8801730341177
fax-no:         +88029563902
e-mail:         abuse@lbis.info
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:11Z
source:         APNIC

role:           ABUSE LANKABANGLABD
country:        ZZ
address:        AA Bhaban (Level 5), 23 Motijheel C/A, Dhaka-1000, Dhaka 1000
phone:          +000000000
e-mail:         mizan@lbsbd.com
admin-c:        LISL1-AP
tech-c:         LISL1-AP
nic-hdl:        AL1483-AP
remarks:        Generated from irt object IRT-LANKABANGLA-BD
remarks:        mizan@lbsbd.com was validated on 2026-08-05
abuse-mailbox:  mizan@lbsbd.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-08-05T02:47:49Z
source:         APNIC

role:           LankaBangla Information System Limited administrat
address:        AA Bhaban (Level 5), 23 Motijheel C/A, Dhaka-1000, Dhaka  1000
country:        BD
phone:          +8801730341177
fax-no:         +8801730341177
e-mail:         abuse@lbis.info
admin-c:        LISL1-AP
tech-c:         LISL1-AP
nic-hdl:        LISL1-AP
mnt-by:         MAINT-LANKABANGLA-BD
last-modified:  2013-05-30T11:32:20Z
source:         APNIC

% Information related to '103.249.56.0/24AS58935'

route:          103.249.56.0/24
descr:          LankaBangla Route Object
origin:         AS58935
country:        BD
notify:         moin@lbis.info
mnt-lower:      MAINT-LANKABANGLA-BD
mnt-routes:     MAINT-LANKABANGLA-BD
mnt-by:         MAINT-LANKABANGLA-BD
last-modified:  2013-06-02T08:22:48Z
source:         APNIC

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