What you can and cannot do with a phone number alone
You cannot track a cell phone location using only a phone number. Phone numbers themselves do not contain location data. Carriers keep that information private and do not share it with the public, even if you own the phone or the account.
What you can do depends on your relationship to the phone and the phone's owner. If you own the phone or have the owner's permission, you have real options. If you do not, your options are much narrower and often require going through law enforcement or the courts.
This guide explains what actually works, who can access location data, and what the legal boundaries are.
Key Takeaways
- A phone number alone cannot reveal location; you need access to the phone itself, the account, or a court order.
- If you own the phone or have written permission from the owner, built-in tracking features like Find My iPhone or Google's Find My Device work reliably.
- Family members can sometimes use family tracking apps, but the phone owner must install and authorize them first.
- Law enforcement and courts can compel carriers to provide location data, but civilians cannot.
- Spyware and unauthorized tracking apps are illegal in most states and can result in criminal charges.
Tracking a phone you own or have permission to track
If the phone belongs to you or you have written permission from the owner, the fastest method is the phone's built-in tracking system. Apple phones use Find My iPhone, which works through iCloud. Android phones use Find My Device, which works through a Google account. Both are free and do not require a phone number — they require access to the account that set up the phone.
To use Find My iPhone: go to iCloud.com, sign in with the Apple ID that set up the phone, click Find My, and select the device. The map shows the phone's location in real time. If the phone is offline, it shows the last known location. You can also play a sound, lock the screen, or erase the phone remotely.
To use Find My Device: go to google.com/android/find, sign in with the Google account linked to the phone, and select the device. The map works the same way. You can also lock the phone or erase it.
Both systems work only if the phone is turned on and connected to the internet. Both require you to know the account password. Neither requires the phone number.
Family tracking apps for phones you do not own
If you want to track a family member's phone — a child's phone, for example — the phone owner must install a family tracking app and give you permission. The most common options are Life360, Google Family Link, and Apple Family Sharing.
Google Family Link works on Android phones and requires the parent to set it up on the child's phone before the child can use it. Once installed, the parent can see the phone's location in real time through the Family Link app on their own phone. The child cannot remove it without the parent's password.
Apple Family Sharing works on iPhones and requires the family organizer to invite other family members. Once they accept, the organizer can see everyone's location through the Find My app. Family members can choose to share their location or turn it off.
Life360 is a third-party app that works on both Android and iPhone. Everyone in the family must install it and join the same circle. Location updates happen continuously, and the app shows battery level and driving behavior as well.
All three require the phone owner to install the app or accept the invitation. You cannot install them remotely using only a phone number.
What carriers know and will not share
Cell phone carriers — Verizon, AT&T, T-Mobile, and others — know where every phone is at all times. They use this data to route calls and texts and to bill for roaming. They do not share this information with the public under any circumstances, even if you claim to own the phone or the account.
Carriers will share location data only with law enforcement in response to a court order, a warrant, or an emergency (like a 911 call). They will not share it with you, even if you are the account holder. This is a federal privacy rule, not a carrier choice.
Some carriers offer location services to account holders through their own apps — AT&T Call Protect, for example — but these show only the phone's general location, not real-time tracking, and they work only if the phone owner has turned on location services in their phone's settings.
When law enforcement can track a phone
Police and federal agents can compel carriers to provide location data with a court order or warrant. The standard is different depending on what they are investigating. For a felony, they can usually get a warrant. For a misdemeanor or civil matter, they may need a higher standard of proof.
In an emergency — a missing child, an active crime, a threat to life — law enforcement can sometimes get location data without a warrant by calling the carrier directly. The carrier will usually comply if the emergency is genuine.
If you believe someone is in danger, call 911. If you believe a crime has been committed, contact your local police department. Do not try to track someone yourself.
Why unauthorized tracking is illegal
Using spyware, hidden tracking apps, or any method to track someone's phone without their knowledge or permission is illegal in most states. It is a violation of federal wiretapping laws and state stalking or harassment laws. Penalties include criminal charges, fines, and civil lawsuits.
The law applies even if you have a relationship to the person — a spouse, a parent, a business partner. The phone owner must know they are being tracked and must agree to it. Tracking an ex-partner's phone, a teenager's phone without their knowledge, or an employee's personal phone is a crime.
The only exceptions are parents tracking minor children with the child's knowledge (or through parental controls built into the phone's operating system) and law enforcement with a warrant.
Alternatives if you cannot track the phone directly
If you need to find someone and you cannot track their phone, other options exist depending on your situation. If a child is missing, call 911 when ready. If an adult is missing and you have reason to believe they are in danger, call the police non-emergency line and file a missing person report.
If you are trying to locate someone for a civil matter — a debt, a custody dispute, a lawsuit — you may need to hire a private investigator or go through the courts. A lawyer can tell you what is legal in your situation.
If you are concerned about a family member's safety and they are willing, ask them to share their location with you through one of the family tracking apps described above. This requires their active participation and consent.
Frequently Asked Questions
Can I track someone's phone if I know their phone number?
No. A phone number does not contain location information. You would need access to the phone itself, the account that set it up, or a court order. Carriers do not share location data with the public under any circumstances.
Is there an app that tracks phones by phone number?
No legitimate app does this. Any app claiming to track a phone using only a phone number is either a scam or spyware. Using such an app is illegal and can result in criminal charges.
Can I track my child's phone without their knowledge?
You can use parental controls built into the phone's operating system — Google Family Link on Android or Screen Time on iPhone — but your child will know these are installed. You cannot secretly install tracking software on anyone's phone, including your child's, without breaking the law.
What should I do if I think someone is tracking my phone?
Check your phone's settings for unfamiliar apps or location sharing turned on without your knowledge. On iPhone, go to Settings > Privacy > Location Services. On Android, go to Settings > Location. You can also contact your carrier or local police if you believe you are being tracked without permission.
Can a carrier tell me where someone's phone is?
No. Carriers will not share location data with anyone except law enforcement with a warrant. Even account holders cannot get this information from the carrier.