Area Code +81-299-(230000...239999) located in Ishioka, Ibaraki (08), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 299 Subscriber Number From : 230000 Subscriber Number To : 239999 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 : Ishioka Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 36.1900 Longitude : 140.2900 ‹ previous : +81-299-(220000...229999) next › : +81-299-(240000...249999) Dialling Instructions For trunk calls: 0 299 230000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 299 230000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 230000 ~ 239999 (Count: 10,000) Example: +81-299-230000 / 01081-299-230000 (0299-230000 / 0-299-230000) +81-299-230001 / 01081-299-230001 (0299-230001 / 0-299-230001) +81-299-230002 / 01081-299-230002 (0299-230002 / 0-299-230002) +81-299-230003 / 01081-299-230003 (0299-230003 / 0-299-230003) +81-299-230004 / 01081-299-230004 (0299-230004 / 0-299-230004) ...+81-299-xxxxxx / 01081-299-xxxxxx (0299-xxxxxx / 0-299-xxxxxx) ...+81-299-239995 / 01081-299-239995 (0299-239995 / 0-299-239995) +81-299-239996 / 01081-299-239996 (0299-239996 / 0-299-239996) +81-299-239997 / 01081-299-239997 (0299-239997 / 0-299-239997) +81-299-239998 / 01081-299-239998 (0299-239998 / 0-299-239998) +81-299-239999 / 01081-299-239999 (0299-239999 / 0-299-239999)