Area Code +81-800-(8370000...8379999) located in Freephone, more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 800 Subscriber Number From : 8370000 Subscriber Number To : 8379999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : F (Freephone) Carrier Name : Fusion Communications Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) City : Freephone Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 35.6900 Longitude : 139.6900 ‹ previous : +81-800-(8360000...8369999) next › : +81-800-(8380000...8389999) Dialling Instructions For trunk calls: 0 800 8370000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 800 8370000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8370000 ~ 8379999 (Count: 10,000) Example: +81-800-8370000 / 01081-800-8370000 (0800-8370000 / 0-800-8370000) +81-800-8370001 / 01081-800-8370001 (0800-8370001 / 0-800-8370001) +81-800-8370002 / 01081-800-8370002 (0800-8370002 / 0-800-8370002) +81-800-8370003 / 01081-800-8370003 (0800-8370003 / 0-800-8370003) +81-800-8370004 / 01081-800-8370004 (0800-8370004 / 0-800-8370004) ...+81-800-xxxxxxx / 01081-800-xxxxxxx (0800-xxxxxxx / 0-800-xxxxxxx) ...+81-800-8379995 / 01081-800-8379995 (0800-8379995 / 0-800-8379995) +81-800-8379996 / 01081-800-8379996 (0800-8379996 / 0-800-8379996) +81-800-8379997 / 01081-800-8379997 (0800-8379997 / 0-800-8379997) +81-800-8379998 / 01081-800-8379998 (0800-8379998 / 0-800-8379998) +81-800-8379999 / 01081-800-8379999 (0800-8379999 / 0-800-8379999)