You cannot get an IP address from a phone number alone

A phone number and an IP address are two completely separate things that do not connect to each other. Your phone number is tied to your cellular carrier or VoIP service. Your IP address is assigned by your internet service provider when you connect to the internet. There is no public database that matches phone numbers to IP addresses, and phone carriers do not share that information with the public.

If you are trying to locate someone or identify a device, a phone number will not lead you there. If you are concerned about your home network security — which is why you landed on this page — the real issue is protecting your own devices and network from being found or accessed by people who should not have that access.

This distinction matters because many people searching for this information are either trying to solve a security problem or have been told by someone that this is possible. Neither is true, and understanding why will help you focus on what actually protects you.

Key Takeaways

  • Phone numbers and IP addresses are managed by different companies and are not linked in any public or searchable way.
  • If someone claims they can find an IP address from a phone number, they are either mistaken or attempting to mislead you.
  • To protect your home network, focus on securing your router, using strong passwords, and hiding your IP address through a VPN if you need privacy.
  • If you need to identify a device on your own network, log into your router and check the connected devices list instead.
  • Law enforcement and internet service providers can connect phone numbers to IP addresses, but only through legal processes and internal records — not through public tools.

Why phone numbers and IP addresses do not connect

Your phone number is managed by your cellular carrier (like Verizon, AT&T, or T-Mobile) or your VoIP provider. It is tied to your phone line or account, not to your internet connection. Your IP address is assigned by your internet service provider (like Comcast, Charter, or your local fiber company) when your modem connects to the internet.

These are two separate services run by two separate companies. Your cellular carrier has no reason to know your home internet IP address, and your internet service provider has no reason to know your phone number. There is no central registry that matches them together, and neither company shares this information publicly.

Even if you use the same company for both phone and internet service, that information is kept in separate systems. A customer service representative might be able to see both pieces of information in your account, but that data is not exposed to the internet or to other people.

What people actually mean when they ask this question

Most people searching for this information fall into one of three categories. The first is someone who suspects a scammer or harasser is using a phone number to target them online, and they want to know if the person can find their IP address. The second is someone who received a threatening message claiming the sender has their IP address and wants to know if that person also has their phone number. The third is someone trying to identify which device on their home network is using a particular phone number.

If you are in the first group: a scammer can find your IP address if you visit a link they send you, but they cannot get it from your phone number alone. If you are in the second group: someone who has your IP address does not automatically have your phone number, and vice versa. If you are in the third group: you need to check your router's device list, not search the internet.

How to find devices on your own home network

If you need to identify which device is connected to your home network, log into your router. Open a web browser and type 192.168.1.1 or 192.168.0.1 into the address bar (the exact address depends on your router brand). You will be prompted to enter your router's username and password — these are usually printed on a sticker on the router itself.

Once you are logged in, look for a section called "Connected Devices," "Device List," or "DHCP Clients." This will show you every device currently connected to your network, along with its IP address on your local network. You can see the device name, the type of device, and sometimes the MAC address (a unique identifier for that device's network card).

This is the only reliable way to match a device to an IP address on your own network. You cannot do this for other people's networks or devices you do not own.

What to do if someone claims they have your IP address

If you receive a message from someone claiming they have your IP address and threatening to harm you, report it to the platform where you received it. Do not respond, do not pay money, and do not give them any information. This is a common scam, and the threat is almost always empty.

An IP address alone tells someone your approximate geographic location (usually your city or region, not your exact address) and your internet service provider. It does not give them your name, your phone number, your home address, or access to your devices. If someone has your IP address and is threatening you, the threat is not credible based on the IP address alone.

If the harassment continues, save the messages and report them to your local police department or the FBI's Internet Crime Complaint Center. Do not try to retaliate or find the person yourself.

How to hide your IP address if you are concerned about privacy

If you want to prevent websites from seeing your real IP address, use a VPN (virtual private network). A VPN encrypts your internet traffic and routes it through a server in another location, so websites see the VPN server's IP address instead of yours.

Popular VPN services include ExpressVPN, NordVPN, Surfshark, and ProtonVPN. Most charge a monthly fee (usually between five and fifteen dollars). Some offer free versions with limitations. Install the VPN app on your device, turn it on before you browse, and your IP address will be hidden from the websites you visit.

A VPN does not hide your activity from your internet service provider — they can still see that you are using a VPN, just not what you are doing through it. If you need stronger privacy, use Tor Browser, which is free and routes your traffic through multiple servers, but it is slower and not necessary for most people.

How law enforcement can connect phone numbers to IP addresses

Police and federal agencies can obtain the connection between a phone number and an IP address through legal processes. They can subpoena records from internet service providers, cellular carriers, and social media platforms. They can also work with the platforms directly if a crime is involved.

This process requires a warrant or subpoena and takes weeks or months. It is not something that happens when ready, and it is not something a private person can do. If you are worried that law enforcement is investigating you, speak to a lawyer. If you are a victim of a crime, report it to the police and let them handle the investigation.

Frequently Asked Questions

Can someone find my home address from my IP address?

Not precisely. An IP address reveals your approximate location — usually your city or region, sometimes your neighborhood. It does not show your street address. Your internet service provider knows your exact address because they need it to send you a bill, but they do not share that with the public. If someone has your IP address and is threatening you, they cannot find your home from the IP address alone.

If I give someone my phone number, can they find my IP address?

No. A phone number does not lead to an IP address through any public method. Someone would need to trick you into clicking a malicious link or visiting a fake website to capture your IP address — and that has nothing to do with your phone number. Be cautious about clicking links from people you do not know, but not because they can use your phone number to find your IP.

What is a MAC address, and is it the same as an IP address?

No. A MAC address is a unique identifier for your device's network card, used only on your local network. An IP address is used across the entire internet. You have one MAC address per device, but your IP address changes if you restart your modem or switch networks. They serve different purposes and are not interchangeable.

Can I find someone's IP address if I have their phone number?

No. There is no tool or method that converts a phone number to an IP address. If someone is harassing you online and you have their phone number, report the harassment to the platform and to police. Do not try to find their IP address yourself — it will not help and may violate laws against unauthorized access.

Is it illegal to look up someone's IP address?

It depends on how you do it. If someone visits your website, you can see their IP address — that is normal. If you trick someone into clicking a link to capture their IP address, that may be illegal depending on your location and intent. If you hack into a system to find someone's IP address, that is definitely illegal. When in doubt, do not attempt to find someone's information without their knowledge.