Area Code +81-428-(340000...349999) located in Ome, 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 : 340000 Subscriber Number To : 349999 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 : 13 Region Name : Tokyo City : Ome Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 35.7900 Longitude : 139.2800 ‹ previous : +81-428-(330000...339999) next › : +81-428-(350000...359999) Dialling Instructions For trunk calls: 0 428 340000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 428 340000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 340000 ~ 349999 (Count: 10,000) Example: +81-428-340000 / 01081-428-340000 (0428-340000 / 0-428-340000) +81-428-340001 / 01081-428-340001 (0428-340001 / 0-428-340001) +81-428-340002 / 01081-428-340002 (0428-340002 / 0-428-340002) +81-428-340003 / 01081-428-340003 (0428-340003 / 0-428-340003) +81-428-340004 / 01081-428-340004 (0428-340004 / 0-428-340004) ...+81-428-xxxxxx / 01081-428-xxxxxx (0428-xxxxxx / 0-428-xxxxxx) ...+81-428-349995 / 01081-428-349995 (0428-349995 / 0-428-349995) +81-428-349996 / 01081-428-349996 (0428-349996 / 0-428-349996) +81-428-349997 / 01081-428-349997 (0428-349997 / 0-428-349997) +81-428-349998 / 01081-428-349998 (0428-349998 / 0-428-349998) +81-428-349999 / 01081-428-349999 (0428-349999 / 0-428-349999)