Area Code +81-501-(5650000...5659999) located in VoIP, more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 501 Subscriber Number From : 5650000 Subscriber Number To : 5659999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : V (VoIP, Location Independent fixed land line) Carrier Name : Softbank Broadband Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) City : VoIP Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : None Longitude : None ‹ previous : +81-501-(5640000...5649999) next › : +81-501-(5660000...5669999) Dialling Instructions For trunk calls: 0 501 5650000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 501 5650000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5650000 ~ 5659999 (Count: 10,000) Example: +81-501-5650000 / 01081-501-5650000 (0501-5650000 / 0-501-5650000) +81-501-5650001 / 01081-501-5650001 (0501-5650001 / 0-501-5650001) +81-501-5650002 / 01081-501-5650002 (0501-5650002 / 0-501-5650002) +81-501-5650003 / 01081-501-5650003 (0501-5650003 / 0-501-5650003) +81-501-5650004 / 01081-501-5650004 (0501-5650004 / 0-501-5650004) ...+81-501-xxxxxxx / 01081-501-xxxxxxx (0501-xxxxxxx / 0-501-xxxxxxx) ...+81-501-5659995 / 01081-501-5659995 (0501-5659995 / 0-501-5659995) +81-501-5659996 / 01081-501-5659996 (0501-5659996 / 0-501-5659996) +81-501-5659997 / 01081-501-5659997 (0501-5659997 / 0-501-5659997) +81-501-5659998 / 01081-501-5659998 (0501-5659998 / 0-501-5659998) +81-501-5659999 / 01081-501-5659999 (0501-5659999 / 0-501-5659999)