Non-eligible areas

Some areas are not eligible for the 2nd visa. Most of these areas are located near the big cities.
Here is the list of the postcodes that are NOT eligible for the 2nd visa:

If you want to see them on a map click here

2252 to 2255
2264 to 2310
2313 to 2327
2412 to 2414
2416 to 2419
2491 to 2535
2552 to 2574
2595 to 2617
2740 to 2786

2899 to 3210

3335 to 3339
3425 to 3429
3650 to 3657
3750 to 3752
3754 to 3755
3757
3759 to 3761
3763
3765 to 3777
3782
3784 to 3796
3798
3800 to 3815
3910 to 3920
3926 to 3944
3975 to 3978
3980

3997 to 4123

4126 to 4132
4134 to 4210
4212 to 4269
4273 to 4274
4276 to 4279
4281 to 4284
4286
4288 to 4306
4500 to 4514
4516
4520 to 4521

4900 to 4999

6000 to 6040

6045 to 6082
6085 to 6120
6127 to 6199

source: australian governement: see here