I am an truecaller user, it is great app at all there are lot of features in truecaller like it shows the carrier name of the number you searched, which area's of this number generated. Sometimes it also show the name of the user which no we searched but it may or may not be real because of the fake user name may be provided to the truecaller app for that particular app. So guys I will suggest you all use it safely it may be also disclose your identity if you signed up to truecaller it will harms for girls mainly but there are many cyber ruls against that type of harrasment in India, keep safe be safe, and keep using TrueCaller.