Area Code +81-603-(3600000...3699999) located in Fixed Mobile Convergence service, more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 603 Subscriber Number From : 3600000 Subscriber Number To : 3699999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : NTT Communications Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) City : Fixed Mobile Convergence service Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : None Longitude : None ‹ previous : +81-603-(3500000...3599999) next › : +81-603-(3700000...3799999) Dialling Instructions For trunk calls: 0 603 3600000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 603 3600000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3600000 ~ 3699999 (Count: 100,000) Example: +81-603-3600000 / 01081-603-3600000 (0603-3600000 / 0-603-3600000) +81-603-3600001 / 01081-603-3600001 (0603-3600001 / 0-603-3600001) +81-603-3600002 / 01081-603-3600002 (0603-3600002 / 0-603-3600002) +81-603-3600003 / 01081-603-3600003 (0603-3600003 / 0-603-3600003) +81-603-3600004 / 01081-603-3600004 (0603-3600004 / 0-603-3600004) ...+81-603-xxxxxxx / 01081-603-xxxxxxx (0603-xxxxxxx / 0-603-xxxxxxx) ...+81-603-3699995 / 01081-603-3699995 (0603-3699995 / 0-603-3699995) +81-603-3699996 / 01081-603-3699996 (0603-3699996 / 0-603-3699996) +81-603-3699997 / 01081-603-3699997 (0603-3699997 / 0-603-3699997) +81-603-3699998 / 01081-603-3699998 (0603-3699998 / 0-603-3699998) +81-603-3699999 / 01081-603-3699999 (0603-3699999 / 0-603-3699999)