Area Code +975-4-(580000...581999) located in Khaling, more detail is as below. Place International Dialing Code : 975 International Prefix : 00 National Destination Code : 4 Subscriber Number From : 580000 Subscriber Number To : 581999 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 : Khaling Timezone : Asia/Thimphu Coordinated Universal Time : +06:00 Daylight Saving Time : No National Significant Number Minimum Length : 7 Latitude : 27.2100 Longitude : 91.6000 ‹ previous : +975-4-(570000...571999) next › : +975-4-(640000...641999) Dialling Instructions For trunk calls: - 4 580000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 975 4 580000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 580000 ~ 581999 (Count: 2,000) Example: +975-4-580000 / 00975-4-580000 (4-580000 / -4-580000) +975-4-580001 / 00975-4-580001 (4-580001 / -4-580001) +975-4-580002 / 00975-4-580002 (4-580002 / -4-580002) +975-4-580003 / 00975-4-580003 (4-580003 / -4-580003) +975-4-580004 / 00975-4-580004 (4-580004 / -4-580004) ...+975-4-xxxxxx / 00975-4-xxxxxx (4-xxxxxx / -4-xxxxxx) ...+975-4-581995 / 00975-4-581995 (4-581995 / -4-581995) +975-4-581996 / 00975-4-581996 (4-581996 / -4-581996) +975-4-581997 / 00975-4-581997 (4-581997 / -4-581997) +975-4-581998 / 00975-4-581998 (4-581998 / -4-581998) +975-4-581999 / 00975-4-581999 (4-581999 / -4-581999)