Area Code +81-280-(540000...549999) 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 : 540000 Subscriber Number To : 549999 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 : 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 : 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-(510000...519999) next › : +81-280-(550000...559999) Dialling Instructions For trunk calls: 0 280 540000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 280 540000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 540000 ~ 549999 (Count: 10,000) Example: +81-280-540000 / 01081-280-540000 (0280-540000 / 0-280-540000) +81-280-540001 / 01081-280-540001 (0280-540001 / 0-280-540001) +81-280-540002 / 01081-280-540002 (0280-540002 / 0-280-540002) +81-280-540003 / 01081-280-540003 (0280-540003 / 0-280-540003) +81-280-540004 / 01081-280-540004 (0280-540004 / 0-280-540004) ...+81-280-xxxxxx / 01081-280-xxxxxx (0280-xxxxxx / 0-280-xxxxxx) ...+81-280-549995 / 01081-280-549995 (0280-549995 / 0-280-549995) +81-280-549996 / 01081-280-549996 (0280-549996 / 0-280-549996) +81-280-549997 / 01081-280-549997 (0280-549997 / 0-280-549997) +81-280-549998 / 01081-280-549998 (0280-549998 / 0-280-549998) +81-280-549999 / 01081-280-549999 (0280-549999 / 0-280-549999)