% 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 '219.76.0.0 - 219.76.255.255'

% Abuse contact for '219.76.0.0 - 219.76.255.255' is 'noc@imsbiz.com'

inetnum:        219.76.0.0 - 219.76.255.255
netname:        NETVIGATOR
descr:          Hong Kong Telecommunications (HKT) Limited Mass Internet
country:        HK
admin-c:        NA45-AP
tech-c:         NA45-AP
abuse-c:        AH981-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-HK-IMS-CS
mnt-lower:      MAINT-HK-IMS-CS
mnt-routes:     MAINT-HK-IMS-WILSON
mnt-irt:        IRT-HKTIMS-HK
last-modified:  2022-10-28T05:08:45Z
source:         APNIC

irt:            IRT-HKTIMS-HK
address:        PO Box 9896 GPO
e-mail:         noc@imsbiz.com
abuse-mailbox:  noc@imsbiz.com
admin-c:        WC109-AP
tech-c:         WC109-AP
auth:           # Filtered
remarks:        noc@imsbiz.com
remarks:        noc@imsbiz.com was validated on 2024-08-22
mnt-by:         MAINT-HK-IMS
last-modified:  2024-08-22T03:30:23Z
source:         APNIC

role:           ABUSE HKTIMSHK
country:        ZZ
address:        PO Box 9896 GPO
phone:          +000000000
e-mail:         noc@imsbiz.com
admin-c:        WC109-AP
tech-c:         WC109-AP
nic-hdl:        AH981-AP
remarks:        Generated from irt object IRT-HKTIMS-HK
remarks:        noc@imsbiz.com was validated on 2024-08-22
abuse-mailbox:  noc@imsbiz.com
mnt-by:         APNIC-ABUSE
last-modified:  2024-08-22T03:30:25Z
source:         APNIC

role:           NETVIGATOR ADMINISTRATORS
address:        PO Box 9896 GPO
address:        Hong Kong
phone:          +852-2888-2888
country:        hk
e-mail:         pmaster@netvigator.com
admin-c:        WC109-AP
tech-c:         WC109-AP
nic-hdl:        NA45-AP
mnt-by:         MAINT-HK-IMS
last-modified:  2008-09-04T07:54:15Z
source:         APNIC

% Information related to '219.76.0.0/19AS4760'

route:          219.76.0.0/19
origin:         AS4760
descr:          PCCW IMS Limited
                14/F, Lockhart Exchange Bldg
                No. 3 Hennessy Road
mnt-by:         MAINT-HK-IMS
last-modified:  2017-12-13T10:07:35Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.25 (WHOIS-AU3)

Search for
IP address lookups			Miscellaneous queries
-l	1st level less specific		-i	Inverse attributes	None admin-c admin-c,tech-c,zone-c author cross-mnt cross-nfy local-as mbrs-by-ref member-of mnt-by mnt-lower mnt-nfy mnt-routes notify nserver origin person referral-by rev-srv sub-dom tech-c upd-to zone-c
-L	All less specific		-T	Object types	All as-block as-set aut-num domain filter-set inet-rtr inet6num inetnum irt key-cert mntner peering-set person role route route-set rtr-set
-m	1st level more specific
-M	All more specific		Query hints Include "AS" in front of an AS number. Example: AS4808 Include "-t" (template only) or "-v" (template and description) in front of an object name to view the template Example: -t inetnum
-x	Exact match only
-d	Associated reverse domain