Area Code +81-1587-(30000...39999) located in Monbetsu, Hokkaido (01), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 1587 Subscriber Number From : 30000 Subscriber Number To : 39999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Softbank Mobile Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) Region Code : 01 Region Name : Hokkaido City : Monbetsu Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 44.3600 Longitude : 143.3500 ‹ previous : +81-1587-(20000...29999) next › : +81-1587-(50000...59999) Dialling Instructions For trunk calls: 0 1587 30000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 1587 30000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 30000 ~ 39999 (Count: 10,000) Example: +81-1587-30000 / 01081-1587-30000 (01587-30000 / 0-1587-30000) +81-1587-30001 / 01081-1587-30001 (01587-30001 / 0-1587-30001) +81-1587-30002 / 01081-1587-30002 (01587-30002 / 0-1587-30002) +81-1587-30003 / 01081-1587-30003 (01587-30003 / 0-1587-30003) +81-1587-30004 / 01081-1587-30004 (01587-30004 / 0-1587-30004) ...+81-1587-xxxxx / 01081-1587-xxxxx (01587-xxxxx / 0-1587-xxxxx) ...+81-1587-39995 / 01081-1587-39995 (01587-39995 / 0-1587-39995) +81-1587-39996 / 01081-1587-39996 (01587-39996 / 0-1587-39996) +81-1587-39997 / 01081-1587-39997 (01587-39997 / 0-1587-39997) +81-1587-39998 / 01081-1587-39998 (01587-39998 / 0-1587-39998) +81-1587-39999 / 01081-1587-39999 (01587-39999 / 0-1587-39999)