Area Code +81-503-(0150000...0159999) 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 : 0150000 Subscriber Number To : 0159999 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-(0140000...0149999) next › : +81-503-(0160000...0169999) Dialling Instructions For trunk calls: 0 503 0150000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 503 0150000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 0150000 ~ 0159999 (Count: 10,000) Example: +81-503-0150000 / 01081-503-0150000 (0503-0150000 / 0-503-0150000) +81-503-0150001 / 01081-503-0150001 (0503-0150001 / 0-503-0150001) +81-503-0150002 / 01081-503-0150002 (0503-0150002 / 0-503-0150002) +81-503-0150003 / 01081-503-0150003 (0503-0150003 / 0-503-0150003) +81-503-0150004 / 01081-503-0150004 (0503-0150004 / 0-503-0150004) ...+81-503-xxxxxxx / 01081-503-xxxxxxx (0503-xxxxxxx / 0-503-xxxxxxx) ...+81-503-0159995 / 01081-503-0159995 (0503-0159995 / 0-503-0159995) +81-503-0159996 / 01081-503-0159996 (0503-0159996 / 0-503-0159996) +81-503-0159997 / 01081-503-0159997 (0503-0159997 / 0-503-0159997) +81-503-0159998 / 01081-503-0159998 (0503-0159998 / 0-503-0159998) +81-503-0159999 / 01081-503-0159999 (0503-0159999 / 0-503-0159999)