% 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 '221.121.96.0 - 221.121.127.255'

% Abuse contact for '221.121.96.0 - 221.121.127.255' is 'abuse@pldt.com.ph'

inetnum:        221.121.96.0 - 221.121.127.255
netname:        PI-PH
descr:          Pacific Internet Phils.
descr:          19/F Taipan Place Bldg.,
descr:          Emerald Ave., Ortigas Center, Pasig City
descr:          email abuse@pacific.net.ph for ABUSE issue
descr:          email netengr@pacific.net.ph for network issue
country:        PH
org:            ORG-PDSI1-AP
admin-c:        NOC36-AP
tech-c:         NOC36-AP
abuse-c:        AP792-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-AP-PIPH
mnt-routes:     MAINT-AP-PIPH
mnt-irt:        IRT-PDSI-PH
last-modified:  2026-01-16T08:23:25Z
source:         APNIC

irt:            IRT-PDSI-PH
address:        GF PLDT IOC Bldg
address:        224 Nicanor Garcia St, Makati City, MM, PH
e-mail:         abuse@pldt.com.ph
abuse-mailbox:  abuse@pldt.com.ph
admin-c:        NOC36-AP
tech-c:         NOC36-AP
auth:           # Filtered
remarks:        abuse@pldt.com.ph was validated on 2026-08-27
mnt-by:         MAINT-AP-PIPH
last-modified:  2026-08-28T05:47:58Z
source:         APNIC

organisation:   ORG-PDSI1-AP
org-name:       Primeworld Digital Systems, Inc.
org-type:       LIR
country:        PH
address:        19/F The Taipan Place
address:        F. Ortigas, Jr. Road
address:        Ortigas Center
phone:          +63-2-918-0318
fax-no:         +63-2-918-0318
e-mail:         ccabecina@pldt.com.ph
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:21Z
source:         APNIC

role:           ABUSE PDSIPH
country:        ZZ
address:        GF PLDT IOC Bldg
address:        224 Nicanor Garcia St, Makati City, MM, PH
phone:          +000000000
e-mail:         abuse@pldt.com.ph
admin-c:        NOC36-AP
tech-c:         NOC36-AP
nic-hdl:        AP792-AP
remarks:        Generated from irt object IRT-PDSI-PH
remarks:        abuse@pldt.com.ph was validated on 2026-08-27
abuse-mailbox:  abuse@pldt.com.ph
mnt-by:         APNIC-ABUSE
last-modified:  2026-08-27T01:37:13Z
source:         APNIC

person:         PLDT APNIC NOC
nic-hdl:        NOC36-AP
e-mail:         Noc_pldt@pldt.com.ph
address:        TNFM-PLDT, G/F PLDT-Smart IOC, Nicanor Garcia St, Makati City, MM, Philippnes
phone:          +632-584-0201
country:        PH
mnt-by:         PHIX-NOC-AP
last-modified:  2026-04-06T02:57:21Z
remarks:        remarks: assigned 20170201
source:         APNIC

% Information related to '221.121.96.0/19AS9299'

route:          221.121.96.0/19
origin:         AS9299
descr:          Primeworld Digital Systems, Inc.
                19/F The Taipan Place
                F. Ortigas, Jr. Road
                Ortigas Center
mnt-by:         MAINT-AP-PIPH
last-modified:  2025-05-23T02:19:26Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)