Area Code +81-133-(660000...669999) located in Ishikari, Hokkaido (01), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 133 Subscriber Number From : 660000 Subscriber Number To : 669999 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 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 : Ishikari Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 43.1700 Longitude : 141.3200 ‹ previous : +81-133-(650000...659999) next › : +81-133-(670000...679999) Dialling Instructions For trunk calls: 0 133 660000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 133 660000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 660000 ~ 669999 (Count: 10,000) Example: +81-133-660000 / 01081-133-660000 (0133-660000 / 0-133-660000) +81-133-660001 / 01081-133-660001 (0133-660001 / 0-133-660001) +81-133-660002 / 01081-133-660002 (0133-660002 / 0-133-660002) +81-133-660003 / 01081-133-660003 (0133-660003 / 0-133-660003) +81-133-660004 / 01081-133-660004 (0133-660004 / 0-133-660004) ...+81-133-xxxxxx / 01081-133-xxxxxx (0133-xxxxxx / 0-133-xxxxxx) ...+81-133-669995 / 01081-133-669995 (0133-669995 / 0-133-669995) +81-133-669996 / 01081-133-669996 (0133-669996 / 0-133-669996) +81-133-669997 / 01081-133-669997 (0133-669997 / 0-133-669997) +81-133-669998 / 01081-133-669998 (0133-669998 / 0-133-669998) +81-133-669999 / 01081-133-669999 (0133-669999 / 0-133-669999)