% 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 '2404:3c00:4000::/36'

% Abuse contact for '2404:3c00:4000::/36' is 'bcsnetadmin@skycable.com'

inet6num:       2404:3c00:4000::/36
netname:        SKYBB8-PH
descr:          SKYBROADBAND
country:        PH
admin-c:        EMF1-AP
tech-c:         EMF1-AP
abuse-c:        AS2519-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-PH-SKYBB
mnt-irt:        IRT-SKYBB-PH
last-modified:  2024-03-11T09:11:18Z
source:         APNIC

irt:            IRT-SKYBB-PH
address:        SKYCABLE Building
address:        409 Ibanez Cor P Guevarra St
address:        San Juan MM
address:        Philippines 1600
e-mail:         bcsnetadmin@skycable.com
abuse-mailbox:  bcsnetadmin@skycable.com
admin-c:        EMF1-AP
tech-c:         EMF1-AP
auth:           # Filtered
remarks:        bcsnetadmin@skycable.com
remarks:        bcsnetadmin@skycable.com was validated on 2025-08-27
mnt-by:         MAINT-PH-SKYBB
last-modified:  2025-11-18T00:26:42Z
source:         APNIC

role:           ABUSE SKYBBPH
country:        ZZ
address:        SKYCABLE Building
address:        409 Ibanez Cor P Guevarra St
address:        San Juan MM
address:        Philippines 1600
phone:          +000000000
e-mail:         bcsnetadmin@skycable.com
admin-c:        EMF1-AP
tech-c:         EMF1-AP
nic-hdl:        AS2519-AP
remarks:        Generated from irt object IRT-SKYBB-PH
remarks:        bcsnetadmin@skycable.com was validated on 2025-08-27
abuse-mailbox:  bcsnetadmin@skycable.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-27T01:42:56Z
source:         APNIC

person:         Eugene M Flores
address:        409 P. Guevarra cor. Ibanez Sts
                Little Baguio, San Juan City
country:        PH
phone:          +63-2-721-6868
e-mail:         emflores@skycable.com
nic-hdl:        EMF1-AP
mnt-by:         MAINT-PH-SKYBB
last-modified:  2016-07-27T05:39:24Z
source:         APNIC

% Information related to '2404:3c00:40a0::/44AS23944'

route6:         2404:3c00:40a0::/44
descr:          SKY Client - Residential via DOCSIS
origin:         AS23944
mnt-by:         MAINT-SKYBB8-PH
last-modified:  2017-06-29T06:52:18Z
source:         APNIC

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