Area Code +81-1398-(20000...29999) located in Kumaishi, Hokkaido (01), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 1398 Subscriber Number From : 20000 Subscriber Number To : 29999 National Destination Code Length : 4 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 : 01 Region Name : Hokkaido City : Kumaishi Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 42.1300 Longitude : 139.9800 ‹ previous : +81-1397-(70000...79999) next › : +81-1398-(30000...39999) Dialling Instructions For trunk calls: 0 1398 20000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 1398 20000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 20000 ~ 29999 (Count: 10,000) Example: +81-1398-20000 / 01081-1398-20000 (01398-20000 / 0-1398-20000) +81-1398-20001 / 01081-1398-20001 (01398-20001 / 0-1398-20001) +81-1398-20002 / 01081-1398-20002 (01398-20002 / 0-1398-20002) +81-1398-20003 / 01081-1398-20003 (01398-20003 / 0-1398-20003) +81-1398-20004 / 01081-1398-20004 (01398-20004 / 0-1398-20004) ...+81-1398-xxxxx / 01081-1398-xxxxx (01398-xxxxx / 0-1398-xxxxx) ...+81-1398-29995 / 01081-1398-29995 (01398-29995 / 0-1398-29995) +81-1398-29996 / 01081-1398-29996 (01398-29996 / 0-1398-29996) +81-1398-29997 / 01081-1398-29997 (01398-29997 / 0-1398-29997) +81-1398-29998 / 01081-1398-29998 (01398-29998 / 0-1398-29998) +81-1398-29999 / 01081-1398-29999 (01398-29999 / 0-1398-29999)