Area Codes by Region and State

Central East Region
(New South Wales, Australian Capital Territory. parts of northern Victoria)

2

South East Region
(Tasmania, most of Victoria & parts of southern New South Wales)

3

Digital GSM Mobile phones
(All States)

4

North East Region
(Queensland)

7

Central & West Region
(South Australia, Northern Territory & Western Australia)

8

Prefix to Block CND (Calling Number Display)

1831

Dial & Hang-up to test ring-back of phone

127-22199

To obtain number of line you are using (Telstra)

127-22123

To obtain number of line you are using (Optus)

127-2312

To obtain number of line you are using (all mobile phones)

018-018-222

Digital GSM Mobile phones (area code 4): the Australian GSM mobile standard is GSM 900/1800, with CDMA service in some areas.

Telstra discontinued its AMPS-800 analog network nationwide in 2002, having replaced it with a CDMA-800 network.  Orange also offers CDMA service.

Here's a list of the mobile networks active in Australia:

Click here for information on GSM carrier-specific features.

GSM roaming agreements exist between Australian and USA carriers for those with Dual-Band 900/1900 or Tri-Band 900/1800/1900 handsets, or USA-based SIM cards can be used in GSM-900 and 1800 handsets.