Area Code +81-503-(0130000...0139999) 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 : 0130000 Subscriber Number To : 0139999 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-(0120000...0129999) next › : +81-503-(0140000...0149999) Dialling Instructions For trunk calls: 0 503 0130000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 503 0130000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 0130000 ~ 0139999 (Count: 10,000) Example: +81-503-0130000 / 01081-503-0130000 (0503-0130000 / 0-503-0130000) +81-503-0130001 / 01081-503-0130001 (0503-0130001 / 0-503-0130001) +81-503-0130002 / 01081-503-0130002 (0503-0130002 / 0-503-0130002) +81-503-0130003 / 01081-503-0130003 (0503-0130003 / 0-503-0130003) +81-503-0130004 / 01081-503-0130004 (0503-0130004 / 0-503-0130004) ...+81-503-xxxxxxx / 01081-503-xxxxxxx (0503-xxxxxxx / 0-503-xxxxxxx) ...+81-503-0139995 / 01081-503-0139995 (0503-0139995 / 0-503-0139995) +81-503-0139996 / 01081-503-0139996 (0503-0139996 / 0-503-0139996) +81-503-0139997 / 01081-503-0139997 (0503-0139997 / 0-503-0139997) +81-503-0139998 / 01081-503-0139998 (0503-0139998 / 0-503-0139998) +81-503-0139999 / 01081-503-0139999 (0503-0139999 / 0-503-0139999)