Area Code +81-23-(6070000...6079999) located in Yamagata, Yamagata (06), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 23 Subscriber Number From : 6070000 Subscriber Number To : 6079999 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 : KDDI 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 : Yamagata Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 38.2600 Longitude : 140.3400 ‹ previous : +81-23-(6060000...6069999) next › : +81-23-(6080000...6089999) Dialling Instructions For trunk calls: 0 23 6070000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 23 6070000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6070000 ~ 6079999 (Count: 10,000) Example: +81-23-6070000 / 01081-23-6070000 (023-6070000 / 0-23-6070000) +81-23-6070001 / 01081-23-6070001 (023-6070001 / 0-23-6070001) +81-23-6070002 / 01081-23-6070002 (023-6070002 / 0-23-6070002) +81-23-6070003 / 01081-23-6070003 (023-6070003 / 0-23-6070003) +81-23-6070004 / 01081-23-6070004 (023-6070004 / 0-23-6070004) ...+81-23-xxxxxxx / 01081-23-xxxxxxx (023-xxxxxxx / 0-23-xxxxxxx) ...+81-23-6079995 / 01081-23-6079995 (023-6079995 / 0-23-6079995) +81-23-6079996 / 01081-23-6079996 (023-6079996 / 0-23-6079996) +81-23-6079997 / 01081-23-6079997 (023-6079997 / 0-23-6079997) +81-23-6079998 / 01081-23-6079998 (023-6079998 / 0-23-6079998) +81-23-6079999 / 01081-23-6079999 (023-6079999 / 0-23-6079999)