Area Code +81-820-(730000...739999) located in Suooshima (Kuka), 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 : 730000 Subscriber Number To : 739999 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 West 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 : Suooshima (Kuka) Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 33.9300 Longitude : 132.2000 ‹ previous : +81-820-(720000...729999) next › : +81-820-(740000...749999) Dialling Instructions For trunk calls: 0 820 730000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 820 730000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 730000 ~ 739999 (Count: 10,000) Example: +81-820-730000 / 01081-820-730000 (0820-730000 / 0-820-730000) +81-820-730001 / 01081-820-730001 (0820-730001 / 0-820-730001) +81-820-730002 / 01081-820-730002 (0820-730002 / 0-820-730002) +81-820-730003 / 01081-820-730003 (0820-730003 / 0-820-730003) +81-820-730004 / 01081-820-730004 (0820-730004 / 0-820-730004) ...+81-820-xxxxxx / 01081-820-xxxxxx (0820-xxxxxx / 0-820-xxxxxx) ...+81-820-739995 / 01081-820-739995 (0820-739995 / 0-820-739995) +81-820-739996 / 01081-820-739996 (0820-739996 / 0-820-739996) +81-820-739997 / 01081-820-739997 (0820-739997 / 0-820-739997) +81-820-739998 / 01081-820-739998 (0820-739998 / 0-820-739998) +81-820-739999 / 01081-820-739999 (0820-739999 / 0-820-739999)