Area Code +81-501-(7910000...7919999) 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 : 7910000 Subscriber Number To : 7919999 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-(7900000...7909999) next › : +81-501-(7920000...7929999) Dialling Instructions For trunk calls: 0 501 7910000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 501 7910000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7910000 ~ 7919999 (Count: 10,000) Example: +81-501-7910000 / 01081-501-7910000 (0501-7910000 / 0-501-7910000) +81-501-7910001 / 01081-501-7910001 (0501-7910001 / 0-501-7910001) +81-501-7910002 / 01081-501-7910002 (0501-7910002 / 0-501-7910002) +81-501-7910003 / 01081-501-7910003 (0501-7910003 / 0-501-7910003) +81-501-7910004 / 01081-501-7910004 (0501-7910004 / 0-501-7910004) ...+81-501-xxxxxxx / 01081-501-xxxxxxx (0501-xxxxxxx / 0-501-xxxxxxx) ...+81-501-7919995 / 01081-501-7919995 (0501-7919995 / 0-501-7919995) +81-501-7919996 / 01081-501-7919996 (0501-7919996 / 0-501-7919996) +81-501-7919997 / 01081-501-7919997 (0501-7919997 / 0-501-7919997) +81-501-7919998 / 01081-501-7919998 (0501-7919998 / 0-501-7919998) +81-501-7919999 / 01081-501-7919999 (0501-7919999 / 0-501-7919999)