% 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 '203.131.163.208 - 203.131.163.215'

% Abuse contact for '203.131.163.208 - 203.131.163.215' is 'abuse@vitrodc.com'

inetnum:        203.131.163.208 - 203.131.163.215
netname:        SMINVEST-PH
descr:          SM Investment Corp
descr:          Taal Vista Hotel Gen E Aguinaldo Bgy
descr:          Kaybagal South TAGAYTAY CITY
country:        PH
admin-c:        CG208-AP
tech-c:         CG208-AP
abuse-c:        AE135-AP
status:         ASSIGNED NON-PORTABLE
mnt-by:         MAINT-PH-EPLDT
mnt-irt:        IRT-EPLDT-PH
last-modified:  2021-06-30T02:47:54Z
source:         APNIC

irt:            IRT-EPLDT-PH
address:        PLDT Building , Pasig City
e-mail:         nim@vitrodc.com
abuse-mailbox:  abuse@vitrodc.com
admin-c:        RM52-AP
tech-c:         PR143-AP
auth:           # Filtered
remarks:        nim@vitrodc.com was validated on 2025-08-07
remarks:        abuse@vitrodc.com was validated on 2025-10-08
mnt-by:         MAINT-PH-EPLDT
last-modified:  2025-11-18T00:27:16Z
source:         APNIC

role:           ABUSE EPLDTPH
country:        ZZ
address:        PLDT Building , Pasig City
phone:          +000000000
e-mail:         nim@vitrodc.com
admin-c:        RM52-AP
tech-c:         PR143-AP
nic-hdl:        AE135-AP
remarks:        Generated from irt object IRT-EPLDT-PH
remarks:        nim@vitrodc.com was validated on 2025-08-07
remarks:        abuse@vitrodc.com was validated on 2025-10-08
abuse-mailbox:  abuse@vitrodc.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-08T15:18:24Z
source:         APNIC

person:         Cynthia Garcia
nic-hdl:        CG208-AP
e-mail:         jfjavier@pldt.com.ph
address:        Taal Vista Hotel Gen E Aguinaldo Bgy
address:        Kaybagal South TAGAYTAY CITY
phone:          +63-46-413-1000
country:        PH
mnt-by:         MAINT-PH-EPLDT
last-modified:  2011-10-03T08:08:31Z
source:         APNIC

% Information related to '203.131.160.0/20AS7629'

route:          203.131.160.0/20
origin:         AS7629
descr:          VITRO Inc.
                5F L. V Locsin Bldg.  Ayala Avenue
                corner Makati Avenue
mnt-by:         MAINT-PH-EPLDT
last-modified:  2025-09-24T01:04:49Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.36-SNAPSHOT (WHOIS-AU5)