Based on the phone number, this app, in the case of a mobile phone number if carrier name, and phone number for a fixed area, the other is an app to search for carriers.
In particular, by the carrier of the other party, toll so or will be free, those who are using Xi chipping hodai 24 Call Flat au, Plan Z simple, and white plan, he is to search before you call It might be relieved and placed.
※ feature is currently non-search career and is in preparation.
※ The phone number when searching the carrier, the carrier has been changed using the MNP, before moving carrier is displayed. (Which I can not regard any way because the information has not been published.)