Area Code +975-4-(520000...521999) located in Trashigang, more detail is as below. Place International Dialing Code : 975 International Prefix : 00 National Destination Code : 4 Subscriber Number From : 520000 Subscriber Number To : 521999 National Destination Code Length : 1 Uses National Destination Code : Yes National Significant Number Length : 7 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Bhutan Telecom Click here to buy Bhutan Area Code Database Other Information Language Code : dz (Bhutani) Country Number : 64 (Bhutan) Country Code : BT (Bhutan) City : Trashigang Timezone : Asia/Thimphu Coordinated Universal Time : +06:00 Daylight Saving Time : No National Significant Number Minimum Length : 7 Latitude : 27.3300 Longitude : 91.5500 ‹ previous : +975-3-(750000...759999) next › : +975-4-(535000...535999) Dialling Instructions For trunk calls: - 4 520000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 975 4 520000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 520000 ~ 521999 (Count: 2,000) Example: +975-4-520000 / 00975-4-520000 (4-520000 / -4-520000) +975-4-520001 / 00975-4-520001 (4-520001 / -4-520001) +975-4-520002 / 00975-4-520002 (4-520002 / -4-520002) +975-4-520003 / 00975-4-520003 (4-520003 / -4-520003) +975-4-520004 / 00975-4-520004 (4-520004 / -4-520004) ...+975-4-xxxxxx / 00975-4-xxxxxx (4-xxxxxx / -4-xxxxxx) ...+975-4-521995 / 00975-4-521995 (4-521995 / -4-521995) +975-4-521996 / 00975-4-521996 (4-521996 / -4-521996) +975-4-521997 / 00975-4-521997 (4-521997 / -4-521997) +975-4-521998 / 00975-4-521998 (4-521998 / -4-521998) +975-4-521999 / 00975-4-521999 (4-521999 / -4-521999)