Area Code +81-204-(6400000...6499999) located in Pager service, more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 204 Subscriber Number From : 6400000 Subscriber Number To : 6499999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : Tokyo Telemessage Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) City : Pager service Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : None Longitude : None ‹ previous : +81-204-(6300000...6399999) next › : +81-204-(6500000...6599999) Dialling Instructions For trunk calls: 0 204 6400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 204 6400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6400000 ~ 6499999 (Count: 100,000) Example: +81-204-6400000 / 01081-204-6400000 (0204-6400000 / 0-204-6400000) +81-204-6400001 / 01081-204-6400001 (0204-6400001 / 0-204-6400001) +81-204-6400002 / 01081-204-6400002 (0204-6400002 / 0-204-6400002) +81-204-6400003 / 01081-204-6400003 (0204-6400003 / 0-204-6400003) +81-204-6400004 / 01081-204-6400004 (0204-6400004 / 0-204-6400004) ...+81-204-xxxxxxx / 01081-204-xxxxxxx (0204-xxxxxxx / 0-204-xxxxxxx) ...+81-204-6499995 / 01081-204-6499995 (0204-6499995 / 0-204-6499995) +81-204-6499996 / 01081-204-6499996 (0204-6499996 / 0-204-6499996) +81-204-6499997 / 01081-204-6499997 (0204-6499997 / 0-204-6499997) +81-204-6499998 / 01081-204-6499998 (0204-6499998 / 0-204-6499998) +81-204-6499999 / 01081-204-6499999 (0204-6499999 / 0-204-6499999)