Area Code +81-256-(400000...409999) 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 : 400000 Subscriber Number To : 409999 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 Communications 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-(390000...399999) next › : +81-256-(410000...419999) Dialling Instructions For trunk calls: 0 256 400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 256 400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 400000 ~ 409999 (Count: 10,000) Example: +81-256-400000 / 01081-256-400000 (0256-400000 / 0-256-400000) +81-256-400001 / 01081-256-400001 (0256-400001 / 0-256-400001) +81-256-400002 / 01081-256-400002 (0256-400002 / 0-256-400002) +81-256-400003 / 01081-256-400003 (0256-400003 / 0-256-400003) +81-256-400004 / 01081-256-400004 (0256-400004 / 0-256-400004) ...+81-256-xxxxxx / 01081-256-xxxxxx (0256-xxxxxx / 0-256-xxxxxx) ...+81-256-409995 / 01081-256-409995 (0256-409995 / 0-256-409995) +81-256-409996 / 01081-256-409996 (0256-409996 / 0-256-409996) +81-256-409997 / 01081-256-409997 (0256-409997 / 0-256-409997) +81-256-409998 / 01081-256-409998 (0256-409998 / 0-256-409998) +81-256-409999 / 01081-256-409999 (0256-409999 / 0-256-409999)