Area Code +81-280-(510000...519999) 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 : 510000 Subscriber Number To : 519999 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 : KDDI 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-(480000...489999) next › : +81-280-(540000...549999) Dialling Instructions For trunk calls: 0 280 510000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 280 510000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 510000 ~ 519999 (Count: 10,000) Example: +81-280-510000 / 01081-280-510000 (0280-510000 / 0-280-510000) +81-280-510001 / 01081-280-510001 (0280-510001 / 0-280-510001) +81-280-510002 / 01081-280-510002 (0280-510002 / 0-280-510002) +81-280-510003 / 01081-280-510003 (0280-510003 / 0-280-510003) +81-280-510004 / 01081-280-510004 (0280-510004 / 0-280-510004) ...+81-280-xxxxxx / 01081-280-xxxxxx (0280-xxxxxx / 0-280-xxxxxx) ...+81-280-519995 / 01081-280-519995 (0280-519995 / 0-280-519995) +81-280-519996 / 01081-280-519996 (0280-519996 / 0-280-519996) +81-280-519997 / 01081-280-519997 (0280-519997 / 0-280-519997) +81-280-519998 / 01081-280-519998 (0280-519998 / 0-280-519998) +81-280-519999 / 01081-280-519999 (0280-519999 / 0-280-519999)