Area Code +81-507-(5020000...5029999) located in VoIP, more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 507 Subscriber Number From : 5020000 Subscriber Number To : 5029999 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 : NTT Plala 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 : +81-507-(5010000...5019999) next › : +81-507-(5030000...5039999) Dialling Instructions For trunk calls: 0 507 5020000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 507 5020000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5020000 ~ 5029999 (Count: 10,000) Example: +81-507-5020000 / 01081-507-5020000 (0507-5020000 / 0-507-5020000) +81-507-5020001 / 01081-507-5020001 (0507-5020001 / 0-507-5020001) +81-507-5020002 / 01081-507-5020002 (0507-5020002 / 0-507-5020002) +81-507-5020003 / 01081-507-5020003 (0507-5020003 / 0-507-5020003) +81-507-5020004 / 01081-507-5020004 (0507-5020004 / 0-507-5020004) ...+81-507-xxxxxxx / 01081-507-xxxxxxx (0507-xxxxxxx / 0-507-xxxxxxx) ...+81-507-5029995 / 01081-507-5029995 (0507-5029995 / 0-507-5029995) +81-507-5029996 / 01081-507-5029996 (0507-5029996 / 0-507-5029996) +81-507-5029997 / 01081-507-5029997 (0507-5029997 / 0-507-5029997) +81-507-5029998 / 01081-507-5029998 (0507-5029998 / 0-507-5029998) +81-507-5029999 / 01081-507-5029999 (0507-5029999 / 0-507-5029999)