Area Code +81-501-(7490000...7499999) 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 : 7490000 Subscriber Number To : 7499999 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-(7480000...7489999) next › : +81-501-(7500000...7509999) Dialling Instructions For trunk calls: 0 501 7490000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 501 7490000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7490000 ~ 7499999 (Count: 10,000) Example: +81-501-7490000 / 01081-501-7490000 (0501-7490000 / 0-501-7490000) +81-501-7490001 / 01081-501-7490001 (0501-7490001 / 0-501-7490001) +81-501-7490002 / 01081-501-7490002 (0501-7490002 / 0-501-7490002) +81-501-7490003 / 01081-501-7490003 (0501-7490003 / 0-501-7490003) +81-501-7490004 / 01081-501-7490004 (0501-7490004 / 0-501-7490004) ...+81-501-xxxxxxx / 01081-501-xxxxxxx (0501-xxxxxxx / 0-501-xxxxxxx) ...+81-501-7499995 / 01081-501-7499995 (0501-7499995 / 0-501-7499995) +81-501-7499996 / 01081-501-7499996 (0501-7499996 / 0-501-7499996) +81-501-7499997 / 01081-501-7499997 (0501-7499997 / 0-501-7499997) +81-501-7499998 / 01081-501-7499998 (0501-7499998 / 0-501-7499998) +81-501-7499999 / 01081-501-7499999 (0501-7499999 / 0-501-7499999)