Area Code +81-503-(2250000...2259999) 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 : 2250000 Subscriber Number To : 2259999 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 : KDDI 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-(2240000...2249999) next › : +81-503-(2260000...2269999) Dialling Instructions For trunk calls: 0 503 2250000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 503 2250000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2250000 ~ 2259999 (Count: 10,000) Example: +81-503-2250000 / 01081-503-2250000 (0503-2250000 / 0-503-2250000) +81-503-2250001 / 01081-503-2250001 (0503-2250001 / 0-503-2250001) +81-503-2250002 / 01081-503-2250002 (0503-2250002 / 0-503-2250002) +81-503-2250003 / 01081-503-2250003 (0503-2250003 / 0-503-2250003) +81-503-2250004 / 01081-503-2250004 (0503-2250004 / 0-503-2250004) ...+81-503-xxxxxxx / 01081-503-xxxxxxx (0503-xxxxxxx / 0-503-xxxxxxx) ...+81-503-2259995 / 01081-503-2259995 (0503-2259995 / 0-503-2259995) +81-503-2259996 / 01081-503-2259996 (0503-2259996 / 0-503-2259996) +81-503-2259997 / 01081-503-2259997 (0503-2259997 / 0-503-2259997) +81-503-2259998 / 01081-503-2259998 (0503-2259998 / 0-503-2259998) +81-503-2259999 / 01081-503-2259999 (0503-2259999 / 0-503-2259999)