Area Code +81-501-(5290000...5299999) 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 : 5290000 Subscriber Number To : 5299999 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-(5280000...5289999) next › : +81-501-(5300000...5309999) Dialling Instructions For trunk calls: 0 501 5290000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 501 5290000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5290000 ~ 5299999 (Count: 10,000) Example: +81-501-5290000 / 01081-501-5290000 (0501-5290000 / 0-501-5290000) +81-501-5290001 / 01081-501-5290001 (0501-5290001 / 0-501-5290001) +81-501-5290002 / 01081-501-5290002 (0501-5290002 / 0-501-5290002) +81-501-5290003 / 01081-501-5290003 (0501-5290003 / 0-501-5290003) +81-501-5290004 / 01081-501-5290004 (0501-5290004 / 0-501-5290004) ...+81-501-xxxxxxx / 01081-501-xxxxxxx (0501-xxxxxxx / 0-501-xxxxxxx) ...+81-501-5299995 / 01081-501-5299995 (0501-5299995 / 0-501-5299995) +81-501-5299996 / 01081-501-5299996 (0501-5299996 / 0-501-5299996) +81-501-5299997 / 01081-501-5299997 (0501-5299997 / 0-501-5299997) +81-501-5299998 / 01081-501-5299998 (0501-5299998 / 0-501-5299998) +81-501-5299999 / 01081-501-5299999 (0501-5299999 / 0-501-5299999)