Someone asked so I post here for all to see
Information taken from http://www.prospectshop.com.au/resources.aspx - http://www.prospectshop.com.au/Files/Postcode_Ranges.doc
Following is translated into CS-Cart locations format. All care but no responsibility 
All of ACT
260?
261?
2620
Sydney Metro
2234
2232
2231
2230
222?
221?
220?
21??
20??
Rest of NSW
2235
2236
2237
2238
2239
224?
225?
226?
227?
228?
229?
23??
24??
25??
26??
27??
28??
29??
Darwin Metro
080?
081?
082?
0830
0831
0832
Rest of NT
0833
0834
0835
0836
0837
0838
0839
084?
085?
086?
087?
088?
Brisbane Metro
40??
41??
4200
4201
4202
4203
4204
4205
4206
4207
4300
4301
4302
4303
4304
4305
450?
451?
Rest of QLD
4208
4209
421?
422?
423?
424?
425?
426?
427?
428?
429?
4306
4307
4308
4309
431?
432?
434?
435?
436?
437?
438?
439?
44??
452?
453?
454?
456?
457?
458?
459?
46??
47??
48??
49??
Adelaide Metro
50??
51??
Rest of SA
52??
53??
54??
55??
56??
570?
571?
572?
573?
574?
5825
5826
5827
5828
5829
583?
584?
5850
5851
5852
5853
5854
Hobart Metro
70??
Rest of TAS
71??
72??
73??
74??
75??
76??
77??
78??
79??
Melbourne Metro
30??
31??
3200
3201
3202
3203
3204
3205
3206
3207
Rest of VIC
3208
3209
321?
322?
323?
324?
325?
326?
327?
328?
329?
33??
34??
35??
36??
37??
38??
39??
Perth Metro
60??
61??
Rest of WA
62??
63??
64??
65??
66??
67??
68??
69??