Area Code +81-123-(380000...389999) located in Chitose, Hokkaido (01), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 123 Subscriber Number From : 380000 Subscriber Number To : 389999 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 : Softbank Mobile 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 : Chitose Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 42.8200 Longitude : 141.6500 ‹ previous : +81-123-(370000...379999) next › : +81-123-(390000...399999) Dialling Instructions For trunk calls: 0 123 380000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 123 380000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 380000 ~ 389999 (Count: 10,000) Example: +81-123-380000 / 01081-123-380000 (0123-380000 / 0-123-380000) +81-123-380001 / 01081-123-380001 (0123-380001 / 0-123-380001) +81-123-380002 / 01081-123-380002 (0123-380002 / 0-123-380002) +81-123-380003 / 01081-123-380003 (0123-380003 / 0-123-380003) +81-123-380004 / 01081-123-380004 (0123-380004 / 0-123-380004) ...+81-123-xxxxxx / 01081-123-xxxxxx (0123-xxxxxx / 0-123-xxxxxx) ...+81-123-389995 / 01081-123-389995 (0123-389995 / 0-123-389995) +81-123-389996 / 01081-123-389996 (0123-389996 / 0-123-389996) +81-123-389997 / 01081-123-389997 (0123-389997 / 0-123-389997) +81-123-389998 / 01081-123-389998 (0123-389998 / 0-123-389998) +81-123-389999 / 01081-123-389999 (0123-389999 / 0-123-389999)