Area Code +81-508-(8100000...8109999) located in VoIP, more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 508 Subscriber Number From : 8100000 Subscriber Number To : 8109999 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 : STNet 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 : +81-508-(8090000...8099999) next › : +81-508-(8600000...8699999) Dialling Instructions For trunk calls: 0 508 8100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 508 8100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8100000 ~ 8109999 (Count: 10,000) Example: +81-508-8100000 / 01081-508-8100000 (0508-8100000 / 0-508-8100000) +81-508-8100001 / 01081-508-8100001 (0508-8100001 / 0-508-8100001) +81-508-8100002 / 01081-508-8100002 (0508-8100002 / 0-508-8100002) +81-508-8100003 / 01081-508-8100003 (0508-8100003 / 0-508-8100003) +81-508-8100004 / 01081-508-8100004 (0508-8100004 / 0-508-8100004) ...+81-508-xxxxxxx / 01081-508-xxxxxxx (0508-xxxxxxx / 0-508-xxxxxxx) ...+81-508-8109995 / 01081-508-8109995 (0508-8109995 / 0-508-8109995) +81-508-8109996 / 01081-508-8109996 (0508-8109996 / 0-508-8109996) +81-508-8109997 / 01081-508-8109997 (0508-8109997 / 0-508-8109997) +81-508-8109998 / 01081-508-8109998 (0508-8109998 / 0-508-8109998) +81-508-8109999 / 01081-508-8109999 (0508-8109999 / 0-508-8109999)