Area Code +81-1377-(20000...29999) located in Yakumo, Hokkaido (01), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 1377 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 : Yakumo Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 42.2600 Longitude : 140.2700 ‹ previous : +81-1374-(90000...99999) next › : +81-1377-(30000...39999) Dialling Instructions For trunk calls: 0 1377 20000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 1377 20000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 20000 ~ 29999 (Count: 10,000) Example: +81-1377-20000 / 01081-1377-20000 (01377-20000 / 0-1377-20000) +81-1377-20001 / 01081-1377-20001 (01377-20001 / 0-1377-20001) +81-1377-20002 / 01081-1377-20002 (01377-20002 / 0-1377-20002) +81-1377-20003 / 01081-1377-20003 (01377-20003 / 0-1377-20003) +81-1377-20004 / 01081-1377-20004 (01377-20004 / 0-1377-20004) ...+81-1377-xxxxx / 01081-1377-xxxxx (01377-xxxxx / 0-1377-xxxxx) ...+81-1377-29995 / 01081-1377-29995 (01377-29995 / 0-1377-29995) +81-1377-29996 / 01081-1377-29996 (01377-29996 / 0-1377-29996) +81-1377-29997 / 01081-1377-29997 (01377-29997 / 0-1377-29997) +81-1377-29998 / 01081-1377-29998 (01377-29998 / 0-1377-29998) +81-1377-29999 / 01081-1377-29999 (01377-29999 / 0-1377-29999)