Area Code +81-233-(430000...439999) located in Shinjo, Yamagata (06), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 233 Subscriber Number From : 430000 Subscriber Number To : 439999 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 : 06 Region Name : Yamagata City : Shinjo Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 38.7700 Longitude : 140.3000 ‹ previous : +81-233-(420000...429999) next › : +81-233-(440000...449999) Dialling Instructions For trunk calls: 0 233 430000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 233 430000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 430000 ~ 439999 (Count: 10,000) Example: +81-233-430000 / 01081-233-430000 (0233-430000 / 0-233-430000) +81-233-430001 / 01081-233-430001 (0233-430001 / 0-233-430001) +81-233-430002 / 01081-233-430002 (0233-430002 / 0-233-430002) +81-233-430003 / 01081-233-430003 (0233-430003 / 0-233-430003) +81-233-430004 / 01081-233-430004 (0233-430004 / 0-233-430004) ...+81-233-xxxxxx / 01081-233-xxxxxx (0233-xxxxxx / 0-233-xxxxxx) ...+81-233-439995 / 01081-233-439995 (0233-439995 / 0-233-439995) +81-233-439996 / 01081-233-439996 (0233-439996 / 0-233-439996) +81-233-439997 / 01081-233-439997 (0233-439997 / 0-233-439997) +81-233-439998 / 01081-233-439998 (0233-439998 / 0-233-439998) +81-233-439999 / 01081-233-439999 (0233-439999 / 0-233-439999)