Area Code +81-258-(290000...299999) 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 : 290000 Subscriber Number To : 299999 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-(280000...289999) next › : +81-258-(300000...309999) Dialling Instructions For trunk calls: 0 258 290000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 258 290000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 290000 ~ 299999 (Count: 10,000) Example: +81-258-290000 / 01081-258-290000 (0258-290000 / 0-258-290000) +81-258-290001 / 01081-258-290001 (0258-290001 / 0-258-290001) +81-258-290002 / 01081-258-290002 (0258-290002 / 0-258-290002) +81-258-290003 / 01081-258-290003 (0258-290003 / 0-258-290003) +81-258-290004 / 01081-258-290004 (0258-290004 / 0-258-290004) ...+81-258-xxxxxx / 01081-258-xxxxxx (0258-xxxxxx / 0-258-xxxxxx) ...+81-258-299995 / 01081-258-299995 (0258-299995 / 0-258-299995) +81-258-299996 / 01081-258-299996 (0258-299996 / 0-258-299996) +81-258-299997 / 01081-258-299997 (0258-299997 / 0-258-299997) +81-258-299998 / 01081-258-299998 (0258-299998 / 0-258-299998) +81-258-299999 / 01081-258-299999 (0258-299999 / 0-258-299999)