% 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 '203.198.78.40 - 203.198.78.47'

% Abuse contact for '203.198.78.40 - 203.198.78.47' is 'noc@imsbiz.com'

inetnum:        203.198.78.40 - 203.198.78.47
netname:        BELILIOUSPUBLIC-HK
descr:          BELILIOUS PUBLIC SCHOOL
country:        HK
admin-c:        LM1144-AP
tech-c:         TA66-AP
mnt-by:         MAINT-HK-IMS-CS
last-modified:  2008-09-04T07:02:44Z
source:         APNIC
status:         ASSIGNED NON-PORTABLE

role:           TECHNICAL ADMINISTRATORS
address:        HKT Limited
address:        PO Box 9896 GPO
phone:          +852-2883-5151
country:        HK
e-mail:         noc@imsbiz.com
admin-c:        NOC18-AP
admin-c:        WC109-AP
tech-c:         NOC18-AP
tech-c:         WC109-AP
nic-hdl:        TA66-AP
notify:         noc@imsbiz.com
mnt-by:         MAINT-HK-PCCW-BIA
last-modified:  2016-07-15T04:03:30Z
source:         APNIC

person:         LAW MR
address:        51 TIN HAU TEMPLE ROAD
address:        NORTH POINT
address:        HK
address:
country:        HK
phone:          +852-25718295
fax-no:         +852-25785698
e-mail:         cs@imsbiz.com
nic-hdl:        LM1144-AP
mnt-by:         MAINT-HK-IMS-CS
last-modified:  2008-09-04T07:34:52Z
source:         APNIC

% Information related to '203.198.78.0/24AS4760'

route:          203.198.78.0/24
origin:         AS4760
descr:          PCCW IMS Limited
                14/F, Lockhart Exchange Bldg
                No. 3 Hennessy Road
mnt-by:         MAINT-HK-IMS-CS
last-modified:  2020-07-15T04:21:38Z
source:         APNIC

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