Area Code +81-506-(6190000...6199999) located in VoIP, more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 506 Subscriber Number From : 6190000 Subscriber Number To : 6199999 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 : Kyushu Telecommunication Network 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 : +81-506-(1000000...1009999) next › : +81-506-(6200000...6209999) Dialling Instructions For trunk calls: 0 506 6190000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 506 6190000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6190000 ~ 6199999 (Count: 10,000) Example: +81-506-6190000 / 01081-506-6190000 (0506-6190000 / 0-506-6190000) +81-506-6190001 / 01081-506-6190001 (0506-6190001 / 0-506-6190001) +81-506-6190002 / 01081-506-6190002 (0506-6190002 / 0-506-6190002) +81-506-6190003 / 01081-506-6190003 (0506-6190003 / 0-506-6190003) +81-506-6190004 / 01081-506-6190004 (0506-6190004 / 0-506-6190004) ...+81-506-xxxxxxx / 01081-506-xxxxxxx (0506-xxxxxxx / 0-506-xxxxxxx) ...+81-506-6199995 / 01081-506-6199995 (0506-6199995 / 0-506-6199995) +81-506-6199996 / 01081-506-6199996 (0506-6199996 / 0-506-6199996) +81-506-6199997 / 01081-506-6199997 (0506-6199997 / 0-506-6199997) +81-506-6199998 / 01081-506-6199998 (0506-6199998 / 0-506-6199998) +81-506-6199999 / 01081-506-6199999 (0506-6199999 / 0-506-6199999)