Area Code +81-358-(830000...839999) located in Tokyo, Tokyo (13), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 358 Subscriber Number From : 830000 Subscriber Number To : 839999 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 : Verizon Japan Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) Region Code : 13 Region Name : Tokyo City : Tokyo Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 35.6900 Longitude : 139.6900 ‹ previous : +81-358-(790000...799999) next › : +81-358-(840000...849999) Dialling Instructions For trunk calls: 0 358 830000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 358 830000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 830000 ~ 839999 (Count: 10,000) Example: +81-358-830000 / 01081-358-830000 (0358-830000 / 0-358-830000) +81-358-830001 / 01081-358-830001 (0358-830001 / 0-358-830001) +81-358-830002 / 01081-358-830002 (0358-830002 / 0-358-830002) +81-358-830003 / 01081-358-830003 (0358-830003 / 0-358-830003) +81-358-830004 / 01081-358-830004 (0358-830004 / 0-358-830004) ...+81-358-xxxxxx / 01081-358-xxxxxx (0358-xxxxxx / 0-358-xxxxxx) ...+81-358-839995 / 01081-358-839995 (0358-839995 / 0-358-839995) +81-358-839996 / 01081-358-839996 (0358-839996 / 0-358-839996) +81-358-839997 / 01081-358-839997 (0358-839997 / 0-358-839997) +81-358-839998 / 01081-358-839998 (0358-839998 / 0-358-839998) +81-358-839999 / 01081-358-839999 (0358-839999 / 0-358-839999)