Area Code +81-454-(390000...399999) located in Yokohama, Kanagawa (14), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 454 Subscriber Number From : 390000 Subscriber Number To : 399999 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 : 14 Region Name : Kanagawa City : Yokohama Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 35.4400 Longitude : 139.6400 ‹ previous : +81-454-(380000...389999) next › : +81-454-(400000...409999) Dialling Instructions For trunk calls: 0 454 390000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 454 390000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 390000 ~ 399999 (Count: 10,000) Example: +81-454-390000 / 01081-454-390000 (0454-390000 / 0-454-390000) +81-454-390001 / 01081-454-390001 (0454-390001 / 0-454-390001) +81-454-390002 / 01081-454-390002 (0454-390002 / 0-454-390002) +81-454-390003 / 01081-454-390003 (0454-390003 / 0-454-390003) +81-454-390004 / 01081-454-390004 (0454-390004 / 0-454-390004) ...+81-454-xxxxxx / 01081-454-xxxxxx (0454-xxxxxx / 0-454-xxxxxx) ...+81-454-399995 / 01081-454-399995 (0454-399995 / 0-454-399995) +81-454-399996 / 01081-454-399996 (0454-399996 / 0-454-399996) +81-454-399997 / 01081-454-399997 (0454-399997 / 0-454-399997) +81-454-399998 / 01081-454-399998 (0454-399998 / 0-454-399998) +81-454-399999 / 01081-454-399999 (0454-399999 / 0-454-399999)