Area Code +81-90-(37900000...37999999) located in Mobile Telephony, more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 90 Subscriber Number From : 37900000 Subscriber Number To : 37999999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : Okinawa Cellular Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) City : Mobile Telephony Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 35.6900 Longitude : 139.6900 ‹ previous : +81-90-(37800000...37899999) next › : +81-90-(38000000...38099999) Dialling Instructions For trunk calls: 0 90 37900000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 90 37900000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 37900000 ~ 37999999 (Count: 100,000) Example: +81-90-37900000 / 01081-90-37900000 (090-37900000 / 0-90-37900000) +81-90-37900001 / 01081-90-37900001 (090-37900001 / 0-90-37900001) +81-90-37900002 / 01081-90-37900002 (090-37900002 / 0-90-37900002) +81-90-37900003 / 01081-90-37900003 (090-37900003 / 0-90-37900003) +81-90-37900004 / 01081-90-37900004 (090-37900004 / 0-90-37900004) ...+81-90-xxxxxxxx / 01081-90-xxxxxxxx (090-xxxxxxxx / 0-90-xxxxxxxx) ...+81-90-37999995 / 01081-90-37999995 (090-37999995 / 0-90-37999995) +81-90-37999996 / 01081-90-37999996 (090-37999996 / 0-90-37999996) +81-90-37999997 / 01081-90-37999997 (090-37999997 / 0-90-37999997) +81-90-37999998 / 01081-90-37999998 (090-37999998 / 0-90-37999998) +81-90-37999999 / 01081-90-37999999 (090-37999999 / 0-90-37999999)