Area Code +81-258-(280000...289999) located in Nagaoka, Niigata (15), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 258 Subscriber Number From : 280000 Subscriber Number To : 289999 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 : Nagaoka Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 37.4400 Longitude : 138.8400 ‹ previous : +81-258-(270000...279999) next › : +81-258-(290000...299999) Dialling Instructions For trunk calls: 0 258 280000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 258 280000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 280000 ~ 289999 (Count: 10,000) Example: +81-258-280000 / 01081-258-280000 (0258-280000 / 0-258-280000) +81-258-280001 / 01081-258-280001 (0258-280001 / 0-258-280001) +81-258-280002 / 01081-258-280002 (0258-280002 / 0-258-280002) +81-258-280003 / 01081-258-280003 (0258-280003 / 0-258-280003) +81-258-280004 / 01081-258-280004 (0258-280004 / 0-258-280004) ...+81-258-xxxxxx / 01081-258-xxxxxx (0258-xxxxxx / 0-258-xxxxxx) ...+81-258-289995 / 01081-258-289995 (0258-289995 / 0-258-289995) +81-258-289996 / 01081-258-289996 (0258-289996 / 0-258-289996) +81-258-289997 / 01081-258-289997 (0258-289997 / 0-258-289997) +81-258-289998 / 01081-258-289998 (0258-289998 / 0-258-289998) +81-258-289999 / 01081-258-289999 (0258-289999 / 0-258-289999)