Area Code +81-50-(88640000...88649999) located in VoIP, more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 50 Subscriber Number From : 88640000 Subscriber Number To : 88649999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : V (VoIP, Location Independent fixed land line) Carrier Name : NTT-PC 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 : 35.6900 Longitude : 139.6900 ‹ previous : +81-50-(88100000...88109999) next › : +81-50-(88650000...88659999) Dialling Instructions For trunk calls: 0 50 88640000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 50 88640000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 88640000 ~ 88649999 (Count: 10,000) Example: +81-50-88640000 / 01081-50-88640000 (050-88640000 / 0-50-88640000) +81-50-88640001 / 01081-50-88640001 (050-88640001 / 0-50-88640001) +81-50-88640002 / 01081-50-88640002 (050-88640002 / 0-50-88640002) +81-50-88640003 / 01081-50-88640003 (050-88640003 / 0-50-88640003) +81-50-88640004 / 01081-50-88640004 (050-88640004 / 0-50-88640004) ...+81-50-xxxxxxxx / 01081-50-xxxxxxxx (050-xxxxxxxx / 0-50-xxxxxxxx) ...+81-50-88649995 / 01081-50-88649995 (050-88649995 / 0-50-88649995) +81-50-88649996 / 01081-50-88649996 (050-88649996 / 0-50-88649996) +81-50-88649997 / 01081-50-88649997 (050-88649997 / 0-50-88649997) +81-50-88649998 / 01081-50-88649998 (050-88649998 / 0-50-88649998) +81-50-88649999 / 01081-50-88649999 (050-88649999 / 0-50-88649999)