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

% [whois.apnic.net]
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% Information related to '103.150.19.0 - 103.150.19.255'

% Abuse contact for '103.150.19.0 - 103.150.19.255' is 'abuse@windstreamcommunication.net'

inetnum:        103.150.19.0 - 103.150.19.255
netname:        MANIKGONJNETWORK-BD
descr:          DELTA SOFTWARE AND COMMUNICATION LIMITED
country:        BD
geoloc:         23.861501 89.997816
admin-c:        MIAA1-AP
tech-c:         MIAA1-AP
abuse-c:        AW1074-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-WSCL-BD
mnt-irt:        IRT-WSCL-BD
last-modified:  2025-06-30T07:18:39Z
source:         APNIC

irt:            IRT-WSCL-BD
address:        Khaja Tower, 95 Mohakhali C/A Bir Uttam A.K Khandaker Road, Dhaka Dhaka 1212
e-mail:         abuse@windstreamcommunication.net
abuse-mailbox:  abuse@windstreamcommunication.net
admin-c:        WSCL2-AP
tech-c:         WSCL2-AP
auth:           # Filtered
remarks:        abuse@windstreamcommunication.net was validated on 2026-08-11
mnt-by:         MAINT-WSCL-BD
last-modified:  2026-08-11T13:37:45Z
source:         APNIC

role:           ABUSE WSCLBD
country:        ZZ
address:        Khaja Tower, 95 Mohakhali C/A Bir Uttam A.K Khandaker Road, Dhaka Dhaka 1212
phone:          +000000000
e-mail:         abuse@windstreamcommunication.net
admin-c:        WSCL2-AP
tech-c:         WSCL2-AP
nic-hdl:        AW1074-AP
remarks:        Generated from irt object IRT-WSCL-BD
remarks:        abuse@windstreamcommunication.net was validated on 2026-08-11
abuse-mailbox:  abuse@windstreamcommunication.net
mnt-by:         APNIC-ABUSE
last-modified:  2026-08-11T13:38:12Z
source:         APNIC

role:           Md Idreis Ali administrator
address:        Holding no 0409-00, shop no 409, bandutia manikgonj, manikgonj manikgonj 1804
country:        BD
phone:          +8801716178332
e-mail:         abuse@manikgonjnetwork.net
admin-c:        MIAA1-AP
tech-c:         MIAA1-AP
nic-hdl:        MIAA1-AP
mnt-by:         MAINT-MANIKGONJNETWORK-BD
last-modified:  2020-04-01T00:36:20Z
source:         APNIC

% Information related to '103.150.19.0/24AS152479'

route:          103.150.19.0/24
origin:         AS152479
descr:          DELTA SOFTWARE AND COMMUNICATION LIMITED
mnt-by:         MAINT-WSCL-BD
last-modified:  2025-06-30T07:15:03Z
country:        BD
source:         APNIC

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