Area Code +81-501-(5070000...5079999) 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 : 5070000 Subscriber Number To : 5079999 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-(5060000...5069999) next › : +81-501-(5080000...5089999) Dialling Instructions For trunk calls: 0 501 5070000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 501 5070000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5070000 ~ 5079999 (Count: 10,000) Example: +81-501-5070000 / 01081-501-5070000 (0501-5070000 / 0-501-5070000) +81-501-5070001 / 01081-501-5070001 (0501-5070001 / 0-501-5070001) +81-501-5070002 / 01081-501-5070002 (0501-5070002 / 0-501-5070002) +81-501-5070003 / 01081-501-5070003 (0501-5070003 / 0-501-5070003) +81-501-5070004 / 01081-501-5070004 (0501-5070004 / 0-501-5070004) ...+81-501-xxxxxxx / 01081-501-xxxxxxx (0501-xxxxxxx / 0-501-xxxxxxx) ...+81-501-5079995 / 01081-501-5079995 (0501-5079995 / 0-501-5079995) +81-501-5079996 / 01081-501-5079996 (0501-5079996 / 0-501-5079996) +81-501-5079997 / 01081-501-5079997 (0501-5079997 / 0-501-5079997) +81-501-5079998 / 01081-501-5079998 (0501-5079998 / 0-501-5079998) +81-501-5079999 / 01081-501-5079999 (0501-5079999 / 0-501-5079999)