Area Code +81-503-(4280000...4289999) 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 : 4280000 Subscriber Number To : 4289999 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-(4270000...4279999) next › : +81-503-(4290000...4299999) Dialling Instructions For trunk calls: 0 503 4280000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 503 4280000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4280000 ~ 4289999 (Count: 10,000) Example: +81-503-4280000 / 01081-503-4280000 (0503-4280000 / 0-503-4280000) +81-503-4280001 / 01081-503-4280001 (0503-4280001 / 0-503-4280001) +81-503-4280002 / 01081-503-4280002 (0503-4280002 / 0-503-4280002) +81-503-4280003 / 01081-503-4280003 (0503-4280003 / 0-503-4280003) +81-503-4280004 / 01081-503-4280004 (0503-4280004 / 0-503-4280004) ...+81-503-xxxxxxx / 01081-503-xxxxxxx (0503-xxxxxxx / 0-503-xxxxxxx) ...+81-503-4289995 / 01081-503-4289995 (0503-4289995 / 0-503-4289995) +81-503-4289996 / 01081-503-4289996 (0503-4289996 / 0-503-4289996) +81-503-4289997 / 01081-503-4289997 (0503-4289997 / 0-503-4289997) +81-503-4289998 / 01081-503-4289998 (0503-4289998 / 0-503-4289998) +81-503-4289999 / 01081-503-4289999 (0503-4289999 / 0-503-4289999)
