Area Code +81-501-(4140000...4149999) 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 : 4140000 Subscriber Number To : 4149999 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-(4130000...4139999) next › : +81-501-(4150000...4159999) Dialling Instructions For trunk calls: 0 501 4140000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 501 4140000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4140000 ~ 4149999 (Count: 10,000) Example: +81-501-4140000 / 01081-501-4140000 (0501-4140000 / 0-501-4140000) +81-501-4140001 / 01081-501-4140001 (0501-4140001 / 0-501-4140001) +81-501-4140002 / 01081-501-4140002 (0501-4140002 / 0-501-4140002) +81-501-4140003 / 01081-501-4140003 (0501-4140003 / 0-501-4140003) +81-501-4140004 / 01081-501-4140004 (0501-4140004 / 0-501-4140004) ...+81-501-xxxxxxx / 01081-501-xxxxxxx (0501-xxxxxxx / 0-501-xxxxxxx) ...+81-501-4149995 / 01081-501-4149995 (0501-4149995 / 0-501-4149995) +81-501-4149996 / 01081-501-4149996 (0501-4149996 / 0-501-4149996) +81-501-4149997 / 01081-501-4149997 (0501-4149997 / 0-501-4149997) +81-501-4149998 / 01081-501-4149998 (0501-4149998 / 0-501-4149998) +81-501-4149999 / 01081-501-4149999 (0501-4149999 / 0-501-4149999)