The Wayback Machine - https://web.archive.org/web/20210627220630/http://www.gcatholic.org/dioceses/dioceses-oceania.htm

American Samoa , Australia , Cook Islands , Fiji , French Polynesia , Guam , Indonesia , Kiribati , Marshall Islands , Micronesia , New Caledonia , New Zealand , Northern Mariana Islands , Papua New Guinea , Samoa , Solomon Islands , Tokelau , Tonga , Tuvalu , USA , Vanuatu , Wallis and Futuna