% 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:e0::/28'

% Abuse contact for '2404:e0::/28' is 'abuse.apac@verizon.com'

inet6num:       2404:e0::/28
netname:        MCI-AP-NETBLOCK-20060510
descr:          MCI, Inc. Asia Pte
descr:          MCI Network
country:        AU
org:            ORG-VAPL5-AP
admin-c:        KH550-AP
admin-c:        UI2-AP
tech-c:         KH550-AP
tech-c:         UI2-AP
abuse-c:        AV293-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-DNS-UUNET
mnt-routes:     MAINT-DNS-UUNET
mnt-irt:        IRT-VERIZON-AU
last-modified:  2020-05-27T13:02:21Z
source:         APNIC

irt:            IRT-VERIZON-AU
address:        UUNET House, 203 Pacific Highway
address:        St Leonards, NSW, 2065
e-mail:         abuse.apac@verizon.com
abuse-mailbox:  abuse.apac@verizon.com
admin-c:        UI2-AP
tech-c:         UI2-AP
auth:           # Filtered
remarks:        abuse.apac@verizon.com is invalid
mnt-by:         MAINT-DNS-UUNET
last-modified:  2026-05-14T08:02:36Z
source:         APNIC

organisation:   ORG-VAPL5-AP
org-name:       Verizon Asia Pte Limited
org-type:       LIR
country:        SG
address:        20 Raffles Place
address:        # 15-00 Ocean Towers
phone:          +65-6248-6513
fax-no:         +65-6248-6501
e-mail:         stephen.r.middleton@verizon.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:43Z
source:         APNIC

role:           ABUSE VERIZONAU
country:        ZZ
address:        UUNET House, 203 Pacific Highway
address:        St Leonards, NSW, 2065
phone:          +000000000
e-mail:         abuse.apac@verizon.com
admin-c:        UI2-AP
tech-c:         UI2-AP
nic-hdl:        AV293-AP
remarks:        Generated from irt object IRT-VERIZON-AU
remarks:        abuse.apac@verizon.com is invalid
abuse-mailbox:  abuse.apac@verizon.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-05-14T08:03:09Z
source:         APNIC

role:           UUNET-AU IPAdmins
address:        UUNET House, 203 Pacific Highway
address:        St Leonards, NSW, 2065
country:        AU
phone:          +61-2-9434-5000
fax-no:         +61-2-9434-5888
e-mail:         abuse@hk.verizonbusiness.com
admin-c:        UI2-AP
tech-c:         UI2-AP
nic-hdl:        UI2-AP
remarks:        Admin emails: aspacsystemstac@au.mci.com
mnt-by:         MAINT-DNS-UUNET
last-modified:  2008-09-04T07:54:15Z
source:         APNIC

person:         Kuan Yuan Ho
nic-hdl:        KH550-AP
e-mail:         kuanyuan.ho@verizonbusiness.com
address:        22001 Loudoun County PKWY
address:        Ashburn, VA 20147
phone:          +1-703-886-2734
country:        US
mnt-by:         MAINT-NEW
last-modified:  2010-02-18T02:48:01Z
source:         APNIC

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