Area Code +81-120-(831000...831999) located in Freephone, more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 120 Subscriber Number From : 831000 Subscriber Number To : 831999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : F (Freephone) Carrier Name : NTT Communications Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) City : Freephone Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 35.6900 Longitude : 139.6900 ‹ previous : +81-120-(830000...830999) next › : +81-120-(832000...832999) Dialling Instructions For trunk calls: 0 120 831000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 120 831000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 831000 ~ 831999 (Count: 1,000) Example: +81-120-831000 / 01081-120-831000 (0120-831000 / 0-120-831000) +81-120-831001 / 01081-120-831001 (0120-831001 / 0-120-831001) +81-120-831002 / 01081-120-831002 (0120-831002 / 0-120-831002) +81-120-831003 / 01081-120-831003 (0120-831003 / 0-120-831003) +81-120-831004 / 01081-120-831004 (0120-831004 / 0-120-831004) ...+81-120-xxxxxx / 01081-120-xxxxxx (0120-xxxxxx / 0-120-xxxxxx) ...+81-120-831995 / 01081-120-831995 (0120-831995 / 0-120-831995) +81-120-831996 / 01081-120-831996 (0120-831996 / 0-120-831996) +81-120-831997 / 01081-120-831997 (0120-831997 / 0-120-831997) +81-120-831998 / 01081-120-831998 (0120-831998 / 0-120-831998) +81-120-831999 / 01081-120-831999 (0120-831999 / 0-120-831999)