Area Code +81-507-(7730000...7739999) 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 : 7730000 Subscriber Number To : 7739999 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 : Chubu Telecommunications 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-(7720000...7729999) next › : +81-507-(7740000...7749999) Dialling Instructions For trunk calls: 0 507 7730000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 507 7730000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7730000 ~ 7739999 (Count: 10,000) Example: +81-507-7730000 / 01081-507-7730000 (0507-7730000 / 0-507-7730000) +81-507-7730001 / 01081-507-7730001 (0507-7730001 / 0-507-7730001) +81-507-7730002 / 01081-507-7730002 (0507-7730002 / 0-507-7730002) +81-507-7730003 / 01081-507-7730003 (0507-7730003 / 0-507-7730003) +81-507-7730004 / 01081-507-7730004 (0507-7730004 / 0-507-7730004) ...+81-507-xxxxxxx / 01081-507-xxxxxxx (0507-xxxxxxx / 0-507-xxxxxxx) ...+81-507-7739995 / 01081-507-7739995 (0507-7739995 / 0-507-7739995) +81-507-7739996 / 01081-507-7739996 (0507-7739996 / 0-507-7739996) +81-507-7739997 / 01081-507-7739997 (0507-7739997 / 0-507-7739997) +81-507-7739998 / 01081-507-7739998 (0507-7739998 / 0-507-7739998) +81-507-7739999 / 01081-507-7739999 (0507-7739999 / 0-507-7739999)