Area Code +81-837-(540000...549999) 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 : 540000 Subscriber Number To : 549999 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-(530000...539999) next › : +81-837-(550000...559999) Dialling Instructions For trunk calls: 0 837 540000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 837 540000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 540000 ~ 549999 (Count: 10,000) Example: +81-837-540000 / 01081-837-540000 (0837-540000 / 0-837-540000) +81-837-540001 / 01081-837-540001 (0837-540001 / 0-837-540001) +81-837-540002 / 01081-837-540002 (0837-540002 / 0-837-540002) +81-837-540003 / 01081-837-540003 (0837-540003 / 0-837-540003) +81-837-540004 / 01081-837-540004 (0837-540004 / 0-837-540004) ...+81-837-xxxxxx / 01081-837-xxxxxx (0837-xxxxxx / 0-837-xxxxxx) ...+81-837-549995 / 01081-837-549995 (0837-549995 / 0-837-549995) +81-837-549996 / 01081-837-549996 (0837-549996 / 0-837-549996) +81-837-549997 / 01081-837-549997 (0837-549997 / 0-837-549997) +81-837-549998 / 01081-837-549998 (0837-549998 / 0-837-549998) +81-837-549999 / 01081-837-549999 (0837-549999 / 0-837-549999)