% 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 'GA147-AP'

person:         GTI Admin
nic-hdl:        GA147-AP
e-mail:         accounts@gtihk.com
address:        Flat 1807, Nanyang Plaza, 57 Hung To Road
address:        Kwun Tong, Kowloon
phone:          +852 35834930
fax-no:         +852 35834935
country:        HK
mnt-by:         MAINT-AP-AS6453
last-modified:  2009-03-14T14:55:26Z
source:         APNIC

% Information related to 'GN125-AP'

person:         GTI NOC
nic-hdl:        GN125-AP
e-mail:         noc@gtihk.com
address:        Flat 1807, Nanyang Plaza, 57 Hung To Road
address:        Kwun Tong, Kowloon
phone:          +852 35834930
fax-no:         +852 35834935
country:        HK
mnt-by:         MAINT-AP-AS6453
last-modified:  2009-03-14T14:45:24Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.25 (WHOIS-AU1)

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