Area Code +81-503-(3220000...3229999) located in VoIP, more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 503 Subscriber Number From : 3220000 Subscriber Number To : 3229999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : V (VoIP, Location Independent fixed land line) Carrier Name : NTT Communications Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) City : VoIP Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : None Longitude : None ‹ previous : +81-503-(3210000...3219999) next › : +81-503-(3230000...3239999) Dialling Instructions For trunk calls: 0 503 3220000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 503 3220000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3220000 ~ 3229999 (Count: 10,000) Example: +81-503-3220000 / 01081-503-3220000 (0503-3220000 / 0-503-3220000) +81-503-3220001 / 01081-503-3220001 (0503-3220001 / 0-503-3220001) +81-503-3220002 / 01081-503-3220002 (0503-3220002 / 0-503-3220002) +81-503-3220003 / 01081-503-3220003 (0503-3220003 / 0-503-3220003) +81-503-3220004 / 01081-503-3220004 (0503-3220004 / 0-503-3220004) ...+81-503-xxxxxxx / 01081-503-xxxxxxx (0503-xxxxxxx / 0-503-xxxxxxx) ...+81-503-3229995 / 01081-503-3229995 (0503-3229995 / 0-503-3229995) +81-503-3229996 / 01081-503-3229996 (0503-3229996 / 0-503-3229996) +81-503-3229997 / 01081-503-3229997 (0503-3229997 / 0-503-3229997) +81-503-3229998 / 01081-503-3229998 (0503-3229998 / 0-503-3229998) +81-503-3229999 / 01081-503-3229999 (0503-3229999 / 0-503-3229999)