Can Whoscall provide information about unknown numbers? Gogolook Service September 10, 2020 07:27 An unknown number is impossible to trace or reveal through any app or device. Related articles How to activate the "Caller Identification" function? Does Whoscall identify SMS as well? What features does Whoscall Premium offer? Can Whoscall block Unknown numbers? How to activate the “blocking” function? Comments 0 comments Article is closed for comments.