Is it safe to during a telephone conversation? But some it may seem this it is impossible to foresee, who will call us, there are ways to checking the number which is trying to call us. Such methods gain popularity not exclusively due to numerous benefits, which gives taking care of own safety but also due to ease their availability. Anyone, who has access to the Internet on a smartphone or laptop can check, who called without a sample. Such methods are easy, you don't need to enter any more messages apart from here, which number tried to interact with you . These are methods, which you can apply yourself, but such take care of your own safety. Unknown numbers can ringing with different concepts. Sometimes it's just a mistake, but definitely more often like this unidentified, unknown phones ringing for the purposes of for example phishing personal, false offers. By using these services and by entering own personal information, you may have serious trouble in later time which cannot be solved, if only you check someone's number. What conclusions can be drawn from this? To defend own.