% 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 '2405:c800::/32'

% Abuse contact for '2405:c800::/32' is 'soc@aexp.com'

inet6num:       2405:c800::/32
netname:        AMEX-JAPA-AU-20090311
descr:          12 Shelley St
country:        AU
org:            ORG-AEAP1-AP
admin-c:        AEAP1-AP
tech-c:         AEAP1-AP
abuse-c:        AA2277-AP
status:         ALLOCATED PORTABLE
remarks:        Used for Other
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-AMEX-JAPA-AU
mnt-routes:     MAINT-AMEX-JAPA-AU
mnt-irt:        IRT-AMEX-JAPA-AU
last-modified:  2021-01-18T04:17:34Z
source:         APNIC

irt:            IRT-AMEX-JAPA-AU
address:        3202 W Behrend Dr
e-mail:         soc@aexp.com
abuse-mailbox:  soc@aexp.com
admin-c:        AEAP1-AP
tech-c:         AEAP1-AP
auth:           # Filtered
remarks:        soc@aexp.com is invalid
mnt-by:         MAINT-AMEX-JAPA-AU
last-modified:  2026-02-11T13:09:55Z
source:         APNIC

organisation:   ORG-AEAP1-AP
org-name:       American Express Australia Pty Ltd
org-type:       LIR
country:        AU
address:        12 Shelley St
phone:          +61-2-9271-7175
fax-no:         +61-2-9271-9599
e-mail:         alan.a.deering@aexp.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:30Z
source:         APNIC

role:           ABUSE AMEXJAPAAU
country:        ZZ
address:        3202 W Behrend Dr
phone:          +000000000
e-mail:         soc@aexp.com
admin-c:        AEAP1-AP
tech-c:         AEAP1-AP
nic-hdl:        AA2277-AP
remarks:        Generated from irt object IRT-AMEX-JAPA-AU
remarks:        soc@aexp.com is invalid
abuse-mailbox:  soc@aexp.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-11T13:11:21Z
source:         APNIC

role:           AMERICAN EXPRESS AUSTRALIA PTY LTD - network admin
address:        L1, The Atrium, 60 union Street, Pyrmont, Sydney, NSW 2009
country:        AU
phone:          +61-2-91520989
fax-no:         +61-2-92636044
e-mail:         alan.a.deering@aexp.com
admin-c:        AEAP1-AP
tech-c:         AEAP1-AP
nic-hdl:        AEAP1-AP
mnt-by:         MAINT-AMEX-JAPA-AU
last-modified:  2015-11-17T06:08:52Z
source:         APNIC

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