If this first tip doesn’t work, you can use online services like Tellows. This site, launched in 2010, is present in over 50 countries and is used by over 8 million people each month. Users report unwanted anonymous calls, which allows Tellows to maintain an up-to-date database.
When you enter an unknown number in the Tellows search bar, the service provides you with all possible details about the caller, such as their name, caller type, geographic area, etc. Moreover, the Tellows app is available on both Android and iOS, making it a convenient solution for quickly identifying an unknown number.