Area Code +81-138-(360000...369999) located in Hakodate, Hokkaido (01), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 138 Subscriber Number From : 360000 Subscriber Number To : 369999 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 : 01 Region Name : Hokkaido City : Hakodate Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 41.7700 Longitude : 140.7300 ‹ previous : +81-138-(350000...359999) next › : +81-138-(370000...379999) Dialling Instructions For trunk calls: 0 138 360000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 138 360000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 360000 ~ 369999 (Count: 10,000) Example: +81-138-360000 / 01081-138-360000 (0138-360000 / 0-138-360000) +81-138-360001 / 01081-138-360001 (0138-360001 / 0-138-360001) +81-138-360002 / 01081-138-360002 (0138-360002 / 0-138-360002) +81-138-360003 / 01081-138-360003 (0138-360003 / 0-138-360003) +81-138-360004 / 01081-138-360004 (0138-360004 / 0-138-360004) ...+81-138-xxxxxx / 01081-138-xxxxxx (0138-xxxxxx / 0-138-xxxxxx) ...+81-138-369995 / 01081-138-369995 (0138-369995 / 0-138-369995) +81-138-369996 / 01081-138-369996 (0138-369996 / 0-138-369996) +81-138-369997 / 01081-138-369997 (0138-369997 / 0-138-369997) +81-138-369998 / 01081-138-369998 (0138-369998 / 0-138-369998) +81-138-369999 / 01081-138-369999 (0138-369999 / 0-138-369999)