Mobile Network Prefixes
This is just a reference list of dialing prefixes for mobile phones.
Optus (GSM): 0401, 0402, 0403, 0411, 0412, 0413, 0421
Telstra (GSM): 0407, 0408, 0409, 0417, 0418, 0419, 0437, 0438
Telstra (CDMA): 0427, 0428
Vodafone (GSM): 0404, 0405, 0410, 0414, 0415, 0416
Orange (CDMA): 0425 + more