% APNIC found the following authoritative answer from: whois.apnic.net

% [whois.apnic.net]
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% Information related to '27.100.16.0 - 27.100.19.255'

% Abuse contact for '27.100.16.0 - 27.100.19.255' is 'abuse@goldenfrog.com'

inetnum:        27.100.16.0 - 27.100.19.255
netname:        IPXO
descr:          IPXO
country:        US
admin-c:        ILA24-AP
tech-c:         ILA24-AP
abuse-c:        AG962-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-GOLDENFROG-HK
mnt-irt:        IRT-GOLDENFROG-HK
last-modified:  2022-05-20T16:38:32Z
source:         APNIC

irt:            IRT-GOLDENFROG-HK
address:        PO Box 309, Ugland House
e-mail:         abuse@goldenfrog.com
abuse-mailbox:  abuse@goldenfrog.com
admin-c:        GFIN1-AP
tech-c:         GFIN1-AP
auth:           # Filtered
remarks:        For DMCA and copyright notices, email: dmca2010@goldenfrog.com
remarks:        abuse@goldenfrog.com is invalid
mnt-by:         MAINT-GOLDENFROG-HK
last-modified:  2025-12-17T13:07:41Z
source:         APNIC

role:           ABUSE GOLDENFROGHK
country:        ZZ
address:        PO Box 309, Ugland House
phone:          +000000000
e-mail:         abuse@goldenfrog.com
admin-c:        GFIN1-AP
tech-c:         GFIN1-AP
nic-hdl:        AG962-AP
remarks:        Generated from irt object IRT-GOLDENFROG-HK
remarks:        abuse@goldenfrog.com is invalid
abuse-mailbox:  abuse@goldenfrog.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-17T13:09:34Z
source:         APNIC

role:           IPXO LIMITED administrator
address:        4 Victoria Square, St Albans,, London Hertfordshire AL1 3TF
country:        GB
phone:          +44-151-528-5820
e-mail:         support@ipxo.com
admin-c:        ILA24-AP
tech-c:         ILA24-AP
nic-hdl:        ILA24-AP
mnt-by:         MAINT-IPXOLIMITED-AP
last-modified:  2021-12-20T07:20:08Z
source:         APNIC

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