Area Code +81-428-(580000...589999) located in Sagamihara, Kanagawa (14), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 428 Subscriber Number From : 580000 Subscriber Number To : 589999 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 : SoftBank Telecom 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 : Sagamihara Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 35.5700 Longitude : 139.3700 ‹ previous : +81-428-(560000...569999) next › : +81-428-(590000...599999) Dialling Instructions For trunk calls: 0 428 580000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 428 580000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 580000 ~ 589999 (Count: 10,000) Example: +81-428-580000 / 01081-428-580000 (0428-580000 / 0-428-580000) +81-428-580001 / 01081-428-580001 (0428-580001 / 0-428-580001) +81-428-580002 / 01081-428-580002 (0428-580002 / 0-428-580002) +81-428-580003 / 01081-428-580003 (0428-580003 / 0-428-580003) +81-428-580004 / 01081-428-580004 (0428-580004 / 0-428-580004) ...+81-428-xxxxxx / 01081-428-xxxxxx (0428-xxxxxx / 0-428-xxxxxx) ...+81-428-589995 / 01081-428-589995 (0428-589995 / 0-428-589995) +81-428-589996 / 01081-428-589996 (0428-589996 / 0-428-589996) +81-428-589997 / 01081-428-589997 (0428-589997 / 0-428-589997) +81-428-589998 / 01081-428-589998 (0428-589998 / 0-428-589998) +81-428-589999 / 01081-428-589999 (0428-589999 / 0-428-589999)