Area Code +81-257-(740000...749999) 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 : 740000 Subscriber Number To : 749999 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-(730000...739999) next › : +81-257-(750000...759999) Dialling Instructions For trunk calls: 0 257 740000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 257 740000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 740000 ~ 749999 (Count: 10,000) Example: +81-257-740000 / 01081-257-740000 (0257-740000 / 0-257-740000) +81-257-740001 / 01081-257-740001 (0257-740001 / 0-257-740001) +81-257-740002 / 01081-257-740002 (0257-740002 / 0-257-740002) +81-257-740003 / 01081-257-740003 (0257-740003 / 0-257-740003) +81-257-740004 / 01081-257-740004 (0257-740004 / 0-257-740004) ...+81-257-xxxxxx / 01081-257-xxxxxx (0257-xxxxxx / 0-257-xxxxxx) ...+81-257-749995 / 01081-257-749995 (0257-749995 / 0-257-749995) +81-257-749996 / 01081-257-749996 (0257-749996 / 0-257-749996) +81-257-749997 / 01081-257-749997 (0257-749997 / 0-257-749997) +81-257-749998 / 01081-257-749998 (0257-749998 / 0-257-749998) +81-257-749999 / 01081-257-749999 (0257-749999 / 0-257-749999)
