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

% [whois.apnic.net]
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% Information related to '43.230.11.0 - 43.230.11.255'

% Abuse contact for '43.230.11.0 - 43.230.11.255' is 'abuse@worldbackbone.com'

inetnum:        43.230.11.0 - 43.230.11.255
netname:        BWTECH-HK
descr:          BEST WEBTECHNOLOGY LIMITED
country:        HK
admin-c:        AA2388-AP
tech-c:         AA2388-AP
abuse-c:        AA2388-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-BACKBONE-HK
mnt-irt:        IRT-BACKBONE-HK
last-modified:  2025-02-13T10:18:26Z
source:         APNIC

irt:            IRT-BACKBONE-HK
address:        Hong Kong 6/F, 1 Wang Wo Tsai Street, Tseuen Wan, N.T.
e-mail:         abuse@worldbackbone.com
abuse-mailbox:  abuse@worldbackbone.com
admin-c:        AA2388-AP
tech-c:         AA2388-AP
auth:           # Filtered
remarks:        abuse@worldbackbone.com was validated on 2025-11-29
mnt-by:         MAINT-BACKBONE-HK
last-modified:  2025-11-29T03:57:46Z
source:         APNIC

role:           APNIC administrator
address:        Hong Kong 6/F, 1 Wang Wo Tsai Street, Tseuen Wan, N.T.
country:        HK
phone:          +852-52310655
e-mail:         abuse@worldbackbone.com
admin-c:        AA2388-AP
tech-c:         AA2388-AP
nic-hdl:        AA2388-AP
mnt-by:         MAINT-BACKBONE-HK
last-modified:  2024-08-08T09:38:49Z
source:         APNIC

% Information related to '43.230.11.0/24AS132825'

route:          43.230.11.0/24
origin:         AS132825
descr:          CLIENT ROUTE
mnt-by:         MAINT-FICT-HK
last-modified:  2024-09-18T08:10:58Z
source:         APNIC

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