Oceania consists of following prefixes:
(in red colour not confirmed by qsl)
17 Hawaii 
41 New Zealand
43 Australia
58 East Malaysia
62 Guam 
70 American Samoa
71 Midway I.
91 Indonesia 
96 Tonga 
99 Fiji
101 Papua New Guinea
129 Macquarie I.
130 Norfolk I. 
132 Marshall Is.
133 Mariana Is.
134 Palau 
135 Solomon Is. 
172 New Caledonia
193 Cocos Keeling Is.
197 Vanuatu 
201 French Polynesia
210 Wallis & Futuna Is.
217 Christmas I.
223 Western Samoa
224 W. Kiribati (Gilbert Is.)
225 Brunei Darussalam
230 Micronesia
249 N. Cook Is.
250 S. Cook Is. 
260 Baker & Howland Is.
261 Chatham Is. 
262 Johnston I.
263 Kermadec Is.
264 Kingman Reef
265 C. Kiribati British (Phoenix Is.)
266 E. Kiribati (Line Is.)
267 Kure I.
268 Lord Howe I.
269 Mellish Reef
270 Minami Torishima
271 Nauru
272 Niue
273 Palmyra & Jarvis Is.
274 Pitcairn I.
275 Tokelau Is. 
276 Tuvalu
278 Wake I.
279 Willis I. 
282 Auckland & Campbell Is. 
320 Banaba I.(Ocean I.) 
321 Conway Reef 
325 Rotuma I. 
337 Austral I.
338 Marquesas Is.
339 Temotu Province
341 East Timor 
342 Chesterfield Is. 
343 Ducie I. 
345 Swains I.