Area Code +81-256-(380000...389999) located in Sanjo, Niigata (15), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 256 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 : 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 : 15 Region Name : Niigata City : Sanjo Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 37.6400 Longitude : 138.9600 ‹ previous : +81-256-(360000...369999) next › : +81-256-(390000...399999) Dialling Instructions For trunk calls: 0 256 380000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 256 380000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 380000 ~ 389999 (Count: 10,000) Example: +81-256-380000 / 01081-256-380000 (0256-380000 / 0-256-380000) +81-256-380001 / 01081-256-380001 (0256-380001 / 0-256-380001) +81-256-380002 / 01081-256-380002 (0256-380002 / 0-256-380002) +81-256-380003 / 01081-256-380003 (0256-380003 / 0-256-380003) +81-256-380004 / 01081-256-380004 (0256-380004 / 0-256-380004) ...+81-256-xxxxxx / 01081-256-xxxxxx (0256-xxxxxx / 0-256-xxxxxx) ...+81-256-389995 / 01081-256-389995 (0256-389995 / 0-256-389995) +81-256-389996 / 01081-256-389996 (0256-389996 / 0-256-389996) +81-256-389997 / 01081-256-389997 (0256-389997 / 0-256-389997) +81-256-389998 / 01081-256-389998 (0256-389998 / 0-256-389998) +81-256-389999 / 01081-256-389999 (0256-389999 / 0-256-389999)