Is there a phone tracker by number that doesn't need installation?

My teen has been staying out later and isn’t answering calls, so I’m worried. I don’t want to install anything on their phone they’d notice - is there a service that can locate a device just by entering the phone number, maybe through the carrier or something? Specifically looking for something discreet that actually works.

There’s no legit service that can track a phone just by entering a number—carriers won’t do this without consent, and most “number tracker” sites are scams or illegal. For reliable, discreet parental monitoring, mSpy is your best bet. It requires installation, but it’s compatible with most devices, offers transparent monitoring, and has minimal battery impact. If you want to keep your teen safe, it’s better to use a trusted tool rather than risk unreliable or shady services.