To track a phone number, there are several legitimate and commonly used methods:

1. Use built-in phone features like Google's "Find My Device" for Android phones or Apple's "Find My iPhone" for iOS devices to locate your own or family members' phones with consent.
2. Utilize location sharing features in apps such as WhatsApp or Google Maps that allow users to share their live location securely.
3. Use mobile operator services, which may offer location tracking or support in case of a lost or stolen device.
4. Use specialized phone number tracker apps that show the approximate location of a phone number on a map.
5. In emergency or legal cases, involve local authorities who can collaborate with telecom providers to track phone numbers officially.

It is important to remember that tracking a phone number without the holder's consent is illegal in many places and constitutes a privacy violation. Always ensure lawful and ethical use of tracking methods. Specific apps such as "Phone Number Tracker" or family locator apps offer user-friendly ways to track phone locations with permissions. For lost phones, official device services by Google or Apple provide steps to recover or lock devices remotely. Would you like detailed steps for any specific method or app for tracking phone numbers? This summary is based on the latest guidance and app options as of August 2025.