As a general rule, it is impossible to pinpoint a device’s exact location without its owner’s consent—particularly without installing a dedicated service on their phone or obtaining explicit confirmation from them. Most modern devices and systems are designed to safeguard such data in order to ensure privacy. Nevertheless, there are services that allow you to determine a find location by phone number by sending the individual a special request link. Once they open the link and grant permission, the system can pinpoint their geolocation via their phone’s browser.
