Area Code +81-837-(570000...579999) located in Mine, Yamaguchi (35), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 837 Subscriber Number From : 570000 Subscriber Number To : 579999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : NTT West Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) Region Code : 35 Region Name : Yamaguchi City : Mine Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 34.1700 Longitude : 131.2100 ‹ previous : +81-837-(560000...569999) next › : +81-837-(580000...589999) Dialling Instructions For trunk calls: 0 837 570000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 837 570000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 570000 ~ 579999 (Count: 10,000) Example: +81-837-570000 / 01081-837-570000 (0837-570000 / 0-837-570000) +81-837-570001 / 01081-837-570001 (0837-570001 / 0-837-570001) +81-837-570002 / 01081-837-570002 (0837-570002 / 0-837-570002) +81-837-570003 / 01081-837-570003 (0837-570003 / 0-837-570003) +81-837-570004 / 01081-837-570004 (0837-570004 / 0-837-570004) ...+81-837-xxxxxx / 01081-837-xxxxxx (0837-xxxxxx / 0-837-xxxxxx) ...+81-837-579995 / 01081-837-579995 (0837-579995 / 0-837-579995) +81-837-579996 / 01081-837-579996 (0837-579996 / 0-837-579996) +81-837-579997 / 01081-837-579997 (0837-579997 / 0-837-579997) +81-837-579998 / 01081-837-579998 (0837-579998 / 0-837-579998) +81-837-579999 / 01081-837-579999 (0837-579999 / 0-837-579999)