Area Code +84-511-(0000000...9999999) located in Da Nang, more detail is as below. Place International Dialing Code : 84 International Prefix : 00 National Prefix : 0 National Destination Code : 511 Subscriber Number From : 0000000 Subscriber Number To : 9999999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Viettel Click here to buy Vietnam Area Code Database Other Information Language Code : vi (Vietnamese) Country Number : 704 (Vietnam) Country Code : VN (Vietnam) City : Da Nang Timezone : Asia/Ho_Chi_Minh Coordinated Universal Time : +07:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 20.6500 Longitude : 106.0600 ‹ previous : +84-38-(6000000...6999999) next › : +84-61-(6000000...6999999) Dialling Instructions For trunk calls: 0 511 0000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 84 511 0000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 0000000 ~ 9999999 (Count: 10,000,000) Example: +84-511-0000000 / 0084-511-0000000 (0511-0000000 / 0-511-0000000) +84-511-0000001 / 0084-511-0000001 (0511-0000001 / 0-511-0000001) +84-511-0000002 / 0084-511-0000002 (0511-0000002 / 0-511-0000002) +84-511-0000003 / 0084-511-0000003 (0511-0000003 / 0-511-0000003) +84-511-0000004 / 0084-511-0000004 (0511-0000004 / 0-511-0000004) ...+84-511-xxxxxxx / 0084-511-xxxxxxx (0511-xxxxxxx / 0-511-xxxxxxx) ...+84-511-9999995 / 0084-511-9999995 (0511-9999995 / 0-511-9999995) +84-511-9999996 / 0084-511-9999996 (0511-9999996 / 0-511-9999996) +84-511-9999997 / 0084-511-9999997 (0511-9999997 / 0-511-9999997) +84-511-9999998 / 0084-511-9999998 (0511-9999998 / 0-511-9999998) +84-511-9999999 / 0084-511-9999999 (0511-9999999 / 0-511-9999999)