Area Code +61-12-(5100...5109) located in Operator Services, more detail is as below. Place International Dialing Code : 61 International Prefix : 0011 National Destination Code : 12 Subscriber Number From : 5100 Subscriber Number To : 5109 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 6 Number Type : O (O) Carrier Name : Telstra Corporation Limited Click here to buy Australia Area Code Database Other Information Language Code : en (English) Country Number : 36 (Australia) Country Code : AU (Australia) City : Operator Services Timezone : Australia/Melbourne Coordinated Universal Time : +10:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 6 Latitude : -25.2700 Longitude : 133.7800 ‹ previous : +61-12-(5000...5000) next › : +61-12-(5110...5111) Dialling Instructions For trunk calls: 0 12 5100 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 0011 61 12 5100 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5100 ~ 5109 (Count: 10) Example: +61-12-5100 / 001161-12-5100 (12-5100 / -12-5100) +61-12-5101 / 001161-12-5101 (12-5101 / -12-5101) +61-12-5102 / 001161-12-5102 (12-5102 / -12-5102) +61-12-5103 / 001161-12-5103 (12-5103 / -12-5103) +61-12-5104 / 001161-12-5104 (12-5104 / -12-5104) ...+61-12-xxxx / 001161-12-xxxx (12-xxxx / -12-xxxx) ...+61-12-5105 / 001161-12-5105 (12-5105 / -12-5105) +61-12-5106 / 001161-12-5106 (12-5106 / -12-5106) +61-12-5107 / 001161-12-5107 (12-5107 / -12-5107) +61-12-5108 / 001161-12-5108 (12-5108 / -12-5108) +61-12-5109 / 001161-12-5109 (12-5109 / -12-5109)