Area Code +81-501-(6870000...6879999) 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 : 6870000 Subscriber Number To : 6879999 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-(6860000...6869999) next › : +81-501-(6880000...6889999) Dialling Instructions For trunk calls: 0 501 6870000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 501 6870000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6870000 ~ 6879999 (Count: 10,000) Example: +81-501-6870000 / 01081-501-6870000 (0501-6870000 / 0-501-6870000) +81-501-6870001 / 01081-501-6870001 (0501-6870001 / 0-501-6870001) +81-501-6870002 / 01081-501-6870002 (0501-6870002 / 0-501-6870002) +81-501-6870003 / 01081-501-6870003 (0501-6870003 / 0-501-6870003) +81-501-6870004 / 01081-501-6870004 (0501-6870004 / 0-501-6870004) ...+81-501-xxxxxxx / 01081-501-xxxxxxx (0501-xxxxxxx / 0-501-xxxxxxx) ...+81-501-6879995 / 01081-501-6879995 (0501-6879995 / 0-501-6879995) +81-501-6879996 / 01081-501-6879996 (0501-6879996 / 0-501-6879996) +81-501-6879997 / 01081-501-6879997 (0501-6879997 / 0-501-6879997) +81-501-6879998 / 01081-501-6879998 (0501-6879998 / 0-501-6879998) +81-501-6879999 / 01081-501-6879999 (0501-6879999 / 0-501-6879999)