% 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:b500::/32'

% Abuse contact for '2405:b500::/32' is 'abuse@cloudflare.com'

inet6num:       2405:b500::/32
netname:        CSL-AP
descr:          Cloudflare, Inc.
descr:          101 Townsend Street, San Francisco CA 94107
descr:          (Cloudflare Sydney, LLC)
country:        US
org:            ORG-CSL5-AP
admin-c:        CTC16-AP
tech-c:         CTC16-AP
abuse-c:        AC1913-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-CLOUDFLARE-AP
mnt-routes:     MAINT-CLOUDFLARE-AP
mnt-irt:        IRT-CSL-AP
last-modified:  2024-09-03T12:41:59Z
geofeed:        https://api.cloudflare.com/local-ip-ranges.csv
source:         APNIC

irt:            IRT-CSL-AP
address:        Cloudflare, Inc.
address:        101 Townsend Street, San Francisco CA 94107
e-mail:         rir@cloudflare.com
abuse-mailbox:  abuse@cloudflare.com
admin-c:        CTC16-AP
tech-c:         CTC16-AP
auth:           # Filtered
remarks:        rir@cloudflare.com was validated on 2025-09-03
remarks:        abuse@cloudflare.com was validated on 2025-09-03
irt-nfy:        rir@cloudflare.com
notify:         rir@cloudflare.com
mnt-by:         MAINT-CLOUDFLARE-AP
last-modified:  2025-11-18T00:27:52Z
source:         APNIC

organisation:   ORG-CSL5-AP
org-name:       Cloudflare Sydney, LLC
org-type:       LIR
country:        US
address:        101 Townsend Street
phone:          +1-650-319-8930
fax-no:         +1-650-230-7173
e-mail:         rir@cloudflare.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:04Z
source:         APNIC

role:           ABUSE CSLAP
country:        ZZ
address:        Cloudflare, Inc.
address:        101 Townsend Street, San Francisco CA 94107
phone:          +000000000
e-mail:         rir@cloudflare.com
admin-c:        CTC16-AP
tech-c:         CTC16-AP
nic-hdl:        AC1913-AP
remarks:        Generated from irt object IRT-CSL-AP
remarks:        rir@cloudflare.com was validated on 2025-09-03
remarks:        abuse@cloudflare.com was validated on 2025-09-03
abuse-mailbox:  abuse@cloudflare.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-04T17:10:36Z
source:         APNIC

role:           Cloudflare Technical Contact
address:        101 Townsend Street, San Francisco CA 94107
country:        US
phone:          +1-650-319-8930
e-mail:         rir@cloudflare.com
admin-c:        CTC16-AP
tech-c:         CTC16-AP
nic-hdl:        CTC16-AP
notify:         rir@cloudflare.com
mnt-by:         MAINT-CLOUDFLARE-AP
last-modified:  2017-09-07T21:56:48Z
source:         APNIC

% Information related to '2405:b500:4000::/34AS13335'

route6:         2405:b500:4000::/34
origin:         AS13335
descr:          Cloudflare Sydney, LLC
                101 Townsend Street
mnt-by:         MAINT-CLOUDFLARE-AP
last-modified:  2022-03-22T17:01:41Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-AU4)