Area Code +81-1397-(70000...79999) located in Okushiri, Hokkaido (01), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 1397 Subscriber Number From : 70000 Subscriber Number To : 79999 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 : 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 : 01 Region Name : Hokkaido City : Okushiri Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 42.1700 Longitude : 139.5100 ‹ previous : +81-1397-(50000...59999) next › : +81-1398-(20000...29999) Dialling Instructions For trunk calls: 0 1397 70000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 1397 70000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 70000 ~ 79999 (Count: 10,000) Example: +81-1397-70000 / 01081-1397-70000 (01397-70000 / 0-1397-70000) +81-1397-70001 / 01081-1397-70001 (01397-70001 / 0-1397-70001) +81-1397-70002 / 01081-1397-70002 (01397-70002 / 0-1397-70002) +81-1397-70003 / 01081-1397-70003 (01397-70003 / 0-1397-70003) +81-1397-70004 / 01081-1397-70004 (01397-70004 / 0-1397-70004) ...+81-1397-xxxxx / 01081-1397-xxxxx (01397-xxxxx / 0-1397-xxxxx) ...+81-1397-79995 / 01081-1397-79995 (01397-79995 / 0-1397-79995) +81-1397-79996 / 01081-1397-79996 (01397-79996 / 0-1397-79996) +81-1397-79997 / 01081-1397-79997 (01397-79997 / 0-1397-79997) +81-1397-79998 / 01081-1397-79998 (01397-79998 / 0-1397-79998) +81-1397-79999 / 01081-1397-79999 (01397-79999 / 0-1397-79999)