Area Code +81-237-(230000...239999) located in Murayama, Yamagata (06), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 237 Subscriber Number From : 230000 Subscriber Number To : 239999 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 : Murayama Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 38.4800 Longitude : 140.3800 ‹ previous : +81-237-(220000...229999) next › : +81-237-(240000...249999) Dialling Instructions For trunk calls: 0 237 230000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 237 230000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 230000 ~ 239999 (Count: 10,000) Example: +81-237-230000 / 01081-237-230000 (0237-230000 / 0-237-230000) +81-237-230001 / 01081-237-230001 (0237-230001 / 0-237-230001) +81-237-230002 / 01081-237-230002 (0237-230002 / 0-237-230002) +81-237-230003 / 01081-237-230003 (0237-230003 / 0-237-230003) +81-237-230004 / 01081-237-230004 (0237-230004 / 0-237-230004) ...+81-237-xxxxxx / 01081-237-xxxxxx (0237-xxxxxx / 0-237-xxxxxx) ...+81-237-239995 / 01081-237-239995 (0237-239995 / 0-237-239995) +81-237-239996 / 01081-237-239996 (0237-239996 / 0-237-239996) +81-237-239997 / 01081-237-239997 (0237-239997 / 0-237-239997) +81-237-239998 / 01081-237-239998 (0237-239998 / 0-237-239998) +81-237-239999 / 01081-237-239999 (0237-239999 / 0-237-239999)