Postcode areas 73XX
- Postcode area 7300
- Postcode area 7301
- Postcode area 7320
- Postcode area 7321
- Postcode area 7322
- Postcode area 7330
- Postcode area 7331
- Postcode area 7332
- Postcode area 7333
- Postcode area 7334
- Postcode area 7340
- Postcode area 7350
- Postcode area 7370
- Postcode area 7380
- Postcode area 7382
- Postcode area 7387
- Postcode area 7390