When you're signed in with your Google Account, it saves the Location History of each device with the setting “Devices on this account” turned on You can find this setting in the Location History settings on your Google Account. You can choose which devices provide their location data to Location History.

Good luck finding your lost phone! You can't track a phone by phone number. You can track it with the locating service it uses (Android Device Manager or Apple's equivalent). If it's still connected to the network.

How to Track a Cell Phone Number on Google Map Free? Using Google Maps' "Find My Device" feature, you can locate their Android phone if you have their phone number. By doing so, you'll be able to see their current and past locations they've visited.