Area Code +81-25-(2100000...2109999) located in Niigata, Niigata (15), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 25 Subscriber Number From : 2100000 Subscriber Number To : 2109999 National Destination Code Length : 2 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 : Niigata Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 37.9200 Longitude : 139.0400 ‹ previous : +81-25-(2010000...2019999) next › : +81-25-(2110000...2119999) Dialling Instructions For trunk calls: 0 25 2100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 25 2100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2100000 ~ 2109999 (Count: 10,000) Example: +81-25-2100000 / 01081-25-2100000 (025-2100000 / 0-25-2100000) +81-25-2100001 / 01081-25-2100001 (025-2100001 / 0-25-2100001) +81-25-2100002 / 01081-25-2100002 (025-2100002 / 0-25-2100002) +81-25-2100003 / 01081-25-2100003 (025-2100003 / 0-25-2100003) +81-25-2100004 / 01081-25-2100004 (025-2100004 / 0-25-2100004) ...+81-25-xxxxxxx / 01081-25-xxxxxxx (025-xxxxxxx / 0-25-xxxxxxx) ...+81-25-2109995 / 01081-25-2109995 (025-2109995 / 0-25-2109995) +81-25-2109996 / 01081-25-2109996 (025-2109996 / 0-25-2109996) +81-25-2109997 / 01081-25-2109997 (025-2109997 / 0-25-2109997) +81-25-2109998 / 01081-25-2109998 (025-2109998 / 0-25-2109998) +81-25-2109999 / 01081-25-2109999 (025-2109999 / 0-25-2109999)