Area Code +61-12-(3000000000000...3999999999999) located in Incoming only international, more detail is as below. Place International Dialing Code : 61 International Prefix : 0011 National Destination Code : 12 Subscriber Number From : 3000000000000 Subscriber Number To : 3999999999999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 15 Number Type : S (Special) Carrier Name : Singtel Optus Pty Limited Click here to buy Australia Area Code Database Other Information Language Code : en (English) Country Number : 36 (Australia) Country Code : AU (Australia) City : Incoming only international Timezone : Australia/Melbourne Coordinated Universal Time : +10:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 15 Latitude : -25.2700 Longitude : 133.7800 ‹ previous : +61-12-(02000000...02999999) next › : +61-12-(4124...4124) Dialling Instructions For trunk calls: 0 12 3000000000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 0011 61 12 3000000000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3000000000000 ~ 3999999999999 (Count: 1,000,000,000,000) Example: +61-12-3000000000000 / 001161-12-3000000000000 (12-3000000000000 / -12-3000000000000) +61-12-3000000000001 / 001161-12-3000000000001 (12-3000000000001 / -12-3000000000001) +61-12-3000000000002 / 001161-12-3000000000002 (12-3000000000002 / -12-3000000000002) +61-12-3000000000003 / 001161-12-3000000000003 (12-3000000000003 / -12-3000000000003) +61-12-3000000000004 / 001161-12-3000000000004 (12-3000000000004 / -12-3000000000004) ...+61-12-xxxxxxxxxxxxx / 001161-12-xxxxxxxxxxxxx (12-xxxxxxxxxxxxx / -12-xxxxxxxxxxxxx) ...+61-12-3999999999995 / 001161-12-3999999999995 (12-3999999999995 / -12-3999999999995) +61-12-3999999999996 / 001161-12-3999999999996 (12-3999999999996 / -12-3999999999996) +61-12-3999999999997 / 001161-12-3999999999997 (12-3999999999997 / -12-3999999999997) +61-12-3999999999998 / 001161-12-3999999999998 (12-3999999999998 / -12-3999999999998) +61-12-3999999999999 / 001161-12-3999999999999 (12-3999999999999 / -12-3999999999999)