Area Code +81-428-(910000...919999) 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 : 910000 Subscriber Number To : 919999 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 : KDDI 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-(900000...909999) next › : +81-428-(980000...989999) Dialling Instructions For trunk calls: 0 428 910000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 428 910000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 910000 ~ 919999 (Count: 10,000) Example: +81-428-910000 / 01081-428-910000 (0428-910000 / 0-428-910000) +81-428-910001 / 01081-428-910001 (0428-910001 / 0-428-910001) +81-428-910002 / 01081-428-910002 (0428-910002 / 0-428-910002) +81-428-910003 / 01081-428-910003 (0428-910003 / 0-428-910003) +81-428-910004 / 01081-428-910004 (0428-910004 / 0-428-910004) ...+81-428-xxxxxx / 01081-428-xxxxxx (0428-xxxxxx / 0-428-xxxxxx) ...+81-428-919995 / 01081-428-919995 (0428-919995 / 0-428-919995) +81-428-919996 / 01081-428-919996 (0428-919996 / 0-428-919996) +81-428-919997 / 01081-428-919997 (0428-919997 / 0-428-919997) +81-428-919998 / 01081-428-919998 (0428-919998 / 0-428-919998) +81-428-919999 / 01081-428-919999 (0428-919999 / 0-428-919999)