Area Code +81-990-(540000...547999) located in Premium rate service, more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 990 Subscriber Number From : 540000 Subscriber Number To : 547999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : S (Special) Carrier Name : NTT West Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) City : Premium rate service Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : None Longitude : None ‹ previous : +81-990-(530000...538999) next › : +81-990-(549000...549999) Dialling Instructions For trunk calls: 0 990 540000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 990 540000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 540000 ~ 547999 (Count: 8,000) Example: +81-990-540000 / 01081-990-540000 (0990-540000 / 0-990-540000) +81-990-540001 / 01081-990-540001 (0990-540001 / 0-990-540001) +81-990-540002 / 01081-990-540002 (0990-540002 / 0-990-540002) +81-990-540003 / 01081-990-540003 (0990-540003 / 0-990-540003) +81-990-540004 / 01081-990-540004 (0990-540004 / 0-990-540004) ...+81-990-xxxxxx / 01081-990-xxxxxx (0990-xxxxxx / 0-990-xxxxxx) ...+81-990-547995 / 01081-990-547995 (0990-547995 / 0-990-547995) +81-990-547996 / 01081-990-547996 (0990-547996 / 0-990-547996) +81-990-547997 / 01081-990-547997 (0990-547997 / 0-990-547997) +81-990-547998 / 01081-990-547998 (0990-547998 / 0-990-547998) +81-990-547999 / 01081-990-547999 (0990-547999 / 0-990-547999)