Area Code +81-4992-(90000...99999) located in Izu-Oshima, Tokyo (13), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 4992 Subscriber Number From : 90000 Subscriber Number To : 99999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : NTT East Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) Region Code : 13 Region Name : Tokyo City : Izu-Oshima Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 34.7500 Longitude : 139.3600 ‹ previous : +81-4992-(80000...89999) next › : +81-4994-(20000...29999) Dialling Instructions For trunk calls: 0 4992 90000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 4992 90000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 90000 ~ 99999 (Count: 10,000) Example: +81-4992-90000 / 01081-4992-90000 (04992-90000 / 0-4992-90000) +81-4992-90001 / 01081-4992-90001 (04992-90001 / 0-4992-90001) +81-4992-90002 / 01081-4992-90002 (04992-90002 / 0-4992-90002) +81-4992-90003 / 01081-4992-90003 (04992-90003 / 0-4992-90003) +81-4992-90004 / 01081-4992-90004 (04992-90004 / 0-4992-90004) ...+81-4992-xxxxx / 01081-4992-xxxxx (04992-xxxxx / 0-4992-xxxxx) ...+81-4992-99995 / 01081-4992-99995 (04992-99995 / 0-4992-99995) +81-4992-99996 / 01081-4992-99996 (04992-99996 / 0-4992-99996) +81-4992-99997 / 01081-4992-99997 (04992-99997 / 0-4992-99997) +81-4992-99998 / 01081-4992-99998 (04992-99998 / 0-4992-99998) +81-4992-99999 / 01081-4992-99999 (04992-99999 / 0-4992-99999)