Area Code +81-501-(3390000...3399999) 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 : 3390000 Subscriber Number To : 3399999 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-(3380000...3389999) next › : +81-501-(3400000...3409999) Dialling Instructions For trunk calls: 0 501 3390000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 501 3390000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3390000 ~ 3399999 (Count: 10,000) Example: +81-501-3390000 / 01081-501-3390000 (0501-3390000 / 0-501-3390000) +81-501-3390001 / 01081-501-3390001 (0501-3390001 / 0-501-3390001) +81-501-3390002 / 01081-501-3390002 (0501-3390002 / 0-501-3390002) +81-501-3390003 / 01081-501-3390003 (0501-3390003 / 0-501-3390003) +81-501-3390004 / 01081-501-3390004 (0501-3390004 / 0-501-3390004) ...+81-501-xxxxxxx / 01081-501-xxxxxxx (0501-xxxxxxx / 0-501-xxxxxxx) ...+81-501-3399995 / 01081-501-3399995 (0501-3399995 / 0-501-3399995) +81-501-3399996 / 01081-501-3399996 (0501-3399996 / 0-501-3399996) +81-501-3399997 / 01081-501-3399997 (0501-3399997 / 0-501-3399997) +81-501-3399998 / 01081-501-3399998 (0501-3399998 / 0-501-3399998) +81-501-3399999 / 01081-501-3399999 (0501-3399999 / 0-501-3399999)