Area Code +81-428-(880000...889999) 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 : 880000 Subscriber Number To : 889999 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-(870000...879999) next › : +81-428-(900000...909999) Dialling Instructions For trunk calls: 0 428 880000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 428 880000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 880000 ~ 889999 (Count: 10,000) Example: +81-428-880000 / 01081-428-880000 (0428-880000 / 0-428-880000) +81-428-880001 / 01081-428-880001 (0428-880001 / 0-428-880001) +81-428-880002 / 01081-428-880002 (0428-880002 / 0-428-880002) +81-428-880003 / 01081-428-880003 (0428-880003 / 0-428-880003) +81-428-880004 / 01081-428-880004 (0428-880004 / 0-428-880004) ...+81-428-xxxxxx / 01081-428-xxxxxx (0428-xxxxxx / 0-428-xxxxxx) ...+81-428-889995 / 01081-428-889995 (0428-889995 / 0-428-889995) +81-428-889996 / 01081-428-889996 (0428-889996 / 0-428-889996) +81-428-889997 / 01081-428-889997 (0428-889997 / 0-428-889997) +81-428-889998 / 01081-428-889998 (0428-889998 / 0-428-889998) +81-428-889999 / 01081-428-889999 (0428-889999 / 0-428-889999)