Area Code +81-257-(730000...739999) 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 : 730000 Subscriber Number To : 739999 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 : 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-(720000...729999) next › : +81-257-(740000...749999) Dialling Instructions For trunk calls: 0 257 730000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 257 730000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 730000 ~ 739999 (Count: 10,000) Example: +81-257-730000 / 01081-257-730000 (0257-730000 / 0-257-730000) +81-257-730001 / 01081-257-730001 (0257-730001 / 0-257-730001) +81-257-730002 / 01081-257-730002 (0257-730002 / 0-257-730002) +81-257-730003 / 01081-257-730003 (0257-730003 / 0-257-730003) +81-257-730004 / 01081-257-730004 (0257-730004 / 0-257-730004) ...+81-257-xxxxxx / 01081-257-xxxxxx (0257-xxxxxx / 0-257-xxxxxx) ...+81-257-739995 / 01081-257-739995 (0257-739995 / 0-257-739995) +81-257-739996 / 01081-257-739996 (0257-739996 / 0-257-739996) +81-257-739997 / 01081-257-739997 (0257-739997 / 0-257-739997) +81-257-739998 / 01081-257-739998 (0257-739998 / 0-257-739998) +81-257-739999 / 01081-257-739999 (0257-739999 / 0-257-739999)
