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ஆஸ்திரேலியா அழைப்பு குறியீடுகள்
| 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 |
| Other Numbers | ||
| 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 | |
| Mobile phones in Australia | ||
| 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: |
| GSM-900 | Optus (Australia Wide) | |
| Telstra (Australia Wide) | ||
| Vodafone (Australia Wide) | ||
| GSM-1800 | Telstra (Australia Wide) | |
| CDMA-800 | Orange/Hutchison (Some Capital Cities Only) | |
| 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 |
