Area Code +81-280-(660000...669999) located in Koga, Ibaraki (08), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 280 Subscriber Number From : 660000 Subscriber Number To : 669999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Softbank Mobile Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) Region Code : 08 Region Name : Ibaraki City : Koga Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 36.1800 Longitude : 139.7000 ‹ previous : +81-280-(620000...629999) next › : +81-280-(670000...679999) Dialling Instructions For trunk calls: 0 280 660000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 280 660000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 660000 ~ 669999 (Count: 10,000) Example: +81-280-660000 / 01081-280-660000 (0280-660000 / 0-280-660000) +81-280-660001 / 01081-280-660001 (0280-660001 / 0-280-660001) +81-280-660002 / 01081-280-660002 (0280-660002 / 0-280-660002) +81-280-660003 / 01081-280-660003 (0280-660003 / 0-280-660003) +81-280-660004 / 01081-280-660004 (0280-660004 / 0-280-660004) ...+81-280-xxxxxx / 01081-280-xxxxxx (0280-xxxxxx / 0-280-xxxxxx) ...+81-280-669995 / 01081-280-669995 (0280-669995 / 0-280-669995) +81-280-669996 / 01081-280-669996 (0280-669996 / 0-280-669996) +81-280-669997 / 01081-280-669997 (0280-669997 / 0-280-669997) +81-280-669998 / 01081-280-669998 (0280-669998 / 0-280-669998) +81-280-669999 / 01081-280-669999 (0280-669999 / 0-280-669999)