Area Code +81-257-(100000...109999) located in Minamiuonuma (Muikamachi), Niigata (15), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 257 Subscriber Number From : 100000 Subscriber Number To : 109999 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 : Minamiuonuma (Muikamachi) Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 37.1600 Longitude : 138.9300 ‹ previous : +81-257-(080000...089999) next › : +81-257-(110000...119999) Dialling Instructions For trunk calls: 0 257 100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 257 100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 100000 ~ 109999 (Count: 10,000) Example: +81-257-100000 / 01081-257-100000 (0257-100000 / 0-257-100000) +81-257-100001 / 01081-257-100001 (0257-100001 / 0-257-100001) +81-257-100002 / 01081-257-100002 (0257-100002 / 0-257-100002) +81-257-100003 / 01081-257-100003 (0257-100003 / 0-257-100003) +81-257-100004 / 01081-257-100004 (0257-100004 / 0-257-100004) ...+81-257-xxxxxx / 01081-257-xxxxxx (0257-xxxxxx / 0-257-xxxxxx) ...+81-257-109995 / 01081-257-109995 (0257-109995 / 0-257-109995) +81-257-109996 / 01081-257-109996 (0257-109996 / 0-257-109996) +81-257-109997 / 01081-257-109997 (0257-109997 / 0-257-109997) +81-257-109998 / 01081-257-109998 (0257-109998 / 0-257-109998) +81-257-109999 / 01081-257-109999 (0257-109999 / 0-257-109999)
