Area Code +81-820-(400000...409999) located in Yanai, Yamaguchi (35), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 820 Subscriber Number From : 400000 Subscriber Number To : 409999 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 : Energia Communications Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) Region Code : 35 Region Name : Yamaguchi City : Yanai Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 33.9600 Longitude : 132.1000 ‹ previous : +81-820-(380000...389999) next › : +81-820-(450000...459999) Dialling Instructions For trunk calls: 0 820 400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 820 400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 400000 ~ 409999 (Count: 10,000) Example: +81-820-400000 / 01081-820-400000 (0820-400000 / 0-820-400000) +81-820-400001 / 01081-820-400001 (0820-400001 / 0-820-400001) +81-820-400002 / 01081-820-400002 (0820-400002 / 0-820-400002) +81-820-400003 / 01081-820-400003 (0820-400003 / 0-820-400003) +81-820-400004 / 01081-820-400004 (0820-400004 / 0-820-400004) ...+81-820-xxxxxx / 01081-820-xxxxxx (0820-xxxxxx / 0-820-xxxxxx) ...+81-820-409995 / 01081-820-409995 (0820-409995 / 0-820-409995) +81-820-409996 / 01081-820-409996 (0820-409996 / 0-820-409996) +81-820-409997 / 01081-820-409997 (0820-409997 / 0-820-409997) +81-820-409998 / 01081-820-409998 (0820-409998 / 0-820-409998) +81-820-409999 / 01081-820-409999 (0820-409999 / 0-820-409999)