Area code 03 (landline) services Victoria, Tasmania & Southern NSW in Australia.
The 03 area code serves Tasmania, most of Victoria, and parts of southern New South Wales. Calls from this code originate from one of Australia's most diverse regions, spanning Melbourne, Hobart, and the communities in between.
Area code 03 localities by the first digits of local number:
| Prefix | Locality |
|---|---|
| 0330 | Balranald, Hopetoun, Mildura, Ouyen, Swan Hill |
| 0331 | Bairnsdale, Morwell, Sale |
| 0332 | Colac, Geelong |
| 0333 | Ararat, Ballarat, Horsham, Nhill, Bacchus Marsh, Ballan, Balliang, Mount Wallace |
| 0334 | Bendigo, Charlton, Echuca, Kerang, Maryborough, Gisborne, Kyneton, Redesdale, Romsey, Trentham, Woodend |
| 0340 | Balranald, Hopetoun, Mildura, Ouyen, Swan Hill |
| 0341 | Bairnsdale, Morwell, Sale |
| 0342 | Colac, Geelong |
| 0343 | Ararat, Ballarat, Horsham, Nhill, Bacchus Marsh, Ballan, Balliang, Mount Wallace |
| 0344 | Bendigo, Charlton, Echuca, Kerang, Maryborough, Gisborne, Kyneton, Redesdale, Romsey, Trentham, Woodend |
| 0345 | Camperdown, Casterton, Edenhope, Hamilton, Portland, Warrnambool |
| 0346 | Foster, Korumburra, Bunyip, Hill End (Victoria), Icy Creek, Neerim South, Trafalgar, Warragul |
| 0347 | Alexandra, Myrtleford, Seymour, Wangaratta |
| 0348 | Deniliquin, Numurkah, Shepparton |
| 0349 | Mornington, Cranbourne, Emerald (Victoria), Healesville, Koo Wee, Rup, Marysville, Pakenham, Warburton |
| 0350 | Balranald, Hopetoun, Mildura, Ouyen, Swan Hill |
| 0351 | Bairnsdale, Morwell, Sale |
| 0352 | Colac, Geelong |
| 0353 | Ararat, Ballarat, Horsham, Nhill, Bacchus Marsh, Ballan, Balliang, Mount Wallace |
| 0354 | Bendigo, Charlton, Echuca, Kerang, Maryborough, Gisborne, Kyneton, Redesdale, Romsey, Trentham, Woodend |
| 0355 | Camperdown, Casterton, Edenhope, Hamilton, Portland, Warrnambool |
| 0356 | Foster, Korumburra,, Bunyip, Hill End (Victoria), Icy Creek, Neerim South, Trafalgar, Warragul |
| 0357 | Alexandra, Myrtleford, Seymour, Wangaratta |
| 0358 | Deniliquin, Numurkah, Shepparton |
| 0359 | Mornington, Cranbourne, Emerald (Victoria), Healesville, Koo Wee, Rup, Marysville, Pakenham, Warburton |
| 0360 | Geeveston, Hobart, Oatlands, Ouse |
| 0361 | Geeveston, Hobart, Oatlands, Ouse |
| 0362 | Geeveston, Hobart, Oatlands, Ouse |
| 0363 | Deloraine, Flinders Island, Launceston, Scottsdale, St Mary’s |
| 0364 | Burnie, Devonport, King Island, Queenstown, Smithton |
| 0365 | Burnie, Devonport, King Island, Queenstown, Smithton |
| 0367 | Deloraine, Flinders Island, Launceston, Scottsdale, St Mary’s |
| 0368 | Deloraine, Flinders Island, Launceston, Scottsdale, St Mary’s |
| 0370 | Melbourne |
| 0371 | Melbourne |
| 0372 | Melbourne |
| 0373 | Craigieburn, Point Cook, Sydenham |
| 0374 | Melbourne |
| 0375 | Clayton |
| 0376 | Melbourne |
| 0377 | Melbourne |
| 0378 | Melbourne |
| 0379 | Melbourne |
| 0380 | Sunbury, Werribee |
| 0381 | Kalkallo, Whittlesea |
| 0382 | Croydon |
| 0383 | Craigieburn, Melbourne, Point Cook, Sydenham |
| 0384 | Eltham |
| 0385 | Clayton, Melbourne |
| 0386 | Melbourne |
| 0387 | Clayton, Craigieburn, Dandenong, Eltham, Point Cook, Ringwood |
| 0388 | Ringwood |
| 0389 | Dandenong |
| 0390 | Melbourne |
| 0391 | Melbourne |
| 0392 | Melbourne |
| 0393 | Craigieburn, Melbourne, Point Cook, Sydenham |
| 0394 | Eltham, Melbourne |
| 0395 | Clayton, Melbourne |
| 0396 | Melbourne |
| 0397 | Croydon, Dandenong, Kalkallo, Sunbury, Werribee, Whittlesea |
| 0398 | Melbourne, Ringwood |
| 0399 | Melbourne |