Area Code +81-428-(400000...409999) located in Tatikawa, Tokyo (13), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 428 Subscriber Number From : 400000 Subscriber Number To : 409999 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 : 13 Region Name : Tokyo City : Tatikawa Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 35.7100 Longitude : 139.4100 ‹ previous : +81-428-(380000...389999) next › : +81-428-(410000...419999) Dialling Instructions For trunk calls: 0 428 400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 428 400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 400000 ~ 409999 (Count: 10,000) Example: +81-428-400000 / 01081-428-400000 (0428-400000 / 0-428-400000) +81-428-400001 / 01081-428-400001 (0428-400001 / 0-428-400001) +81-428-400002 / 01081-428-400002 (0428-400002 / 0-428-400002) +81-428-400003 / 01081-428-400003 (0428-400003 / 0-428-400003) +81-428-400004 / 01081-428-400004 (0428-400004 / 0-428-400004) ...+81-428-xxxxxx / 01081-428-xxxxxx (0428-xxxxxx / 0-428-xxxxxx) ...+81-428-409995 / 01081-428-409995 (0428-409995 / 0-428-409995) +81-428-409996 / 01081-428-409996 (0428-409996 / 0-428-409996) +81-428-409997 / 01081-428-409997 (0428-409997 / 0-428-409997) +81-428-409998 / 01081-428-409998 (0428-409998 / 0-428-409998) +81-428-409999 / 01081-428-409999 (0428-409999 / 0-428-409999)