Area Code +81-233-(300000...309999) 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 : 300000 Subscriber Number To : 309999 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 : Softbank Mobile 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-(290000...299999) next › : +81-233-(320000...329999) Dialling Instructions For trunk calls: 0 233 300000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 233 300000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 300000 ~ 309999 (Count: 10,000) Example: +81-233-300000 / 01081-233-300000 (0233-300000 / 0-233-300000) +81-233-300001 / 01081-233-300001 (0233-300001 / 0-233-300001) +81-233-300002 / 01081-233-300002 (0233-300002 / 0-233-300002) +81-233-300003 / 01081-233-300003 (0233-300003 / 0-233-300003) +81-233-300004 / 01081-233-300004 (0233-300004 / 0-233-300004) ...+81-233-xxxxxx / 01081-233-xxxxxx (0233-xxxxxx / 0-233-xxxxxx) ...+81-233-309995 / 01081-233-309995 (0233-309995 / 0-233-309995) +81-233-309996 / 01081-233-309996 (0233-309996 / 0-233-309996) +81-233-309997 / 01081-233-309997 (0233-309997 / 0-233-309997) +81-233-309998 / 01081-233-309998 (0233-309998 / 0-233-309998) +81-233-309999 / 01081-233-309999 (0233-309999 / 0-233-309999)