Area Code +81-138-(250000...259999) 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 : 250000 Subscriber Number To : 259999 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-(240000...249999) next › : +81-138-(260000...269999) Dialling Instructions For trunk calls: 0 138 250000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 138 250000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 250000 ~ 259999 (Count: 10,000) Example: +81-138-250000 / 01081-138-250000 (0138-250000 / 0-138-250000) +81-138-250001 / 01081-138-250001 (0138-250001 / 0-138-250001) +81-138-250002 / 01081-138-250002 (0138-250002 / 0-138-250002) +81-138-250003 / 01081-138-250003 (0138-250003 / 0-138-250003) +81-138-250004 / 01081-138-250004 (0138-250004 / 0-138-250004) ...+81-138-xxxxxx / 01081-138-xxxxxx (0138-xxxxxx / 0-138-xxxxxx) ...+81-138-259995 / 01081-138-259995 (0138-259995 / 0-138-259995) +81-138-259996 / 01081-138-259996 (0138-259996 / 0-138-259996) +81-138-259997 / 01081-138-259997 (0138-259997 / 0-138-259997) +81-138-259998 / 01081-138-259998 (0138-259998 / 0-138-259998) +81-138-259999 / 01081-138-259999 (0138-259999 / 0-138-259999)