Your private IP address is a number your router assigns to each device on your home network so they can find and talk to each other

When you connect a phone, laptop, or smart TV to your home WiFi, your router gives that device a private IP address — something like 192.168.1.5 or 10.0.0.12. This address only works inside your home network. The internet cannot see it, and devices outside your home cannot reach it directly. Your router uses these private addresses as a kind of internal postal system: when your phone sends a message, the router knows it came from 192.168.1.5 and routes replies back to that same address.

Every device on your network gets its own private IP address. Your phone might be 192.168.1.5, your laptop 192.168.1.6, your smart speaker 192.168.1.7. These numbers stay mostly the same unless you restart the device or your router reassigns them. The private address is different from your public IP address — the one the outside world sees when you visit a website. Your router translates between the two, hiding your devices behind a single public address.

Key Takeaways

  • Your router automatically assigns a private IP address to each device that connects to your home network, starting with numbers like 192.168 or 10.0.
  • Private IP addresses only work inside your home network and are invisible to the internet — they cannot be reached from outside your house.
  • Your router translates between private addresses (for devices inside) and your public IP address (for the outside world), a process called Network Address Translation.
  • You can find your device's private IP address in your WiFi settings or network preferences without needing to contact your internet provider.

How to find your private IP address on common devices

On Windows: Open Settings, go to Network & Internet, then WiFi. Click the WiFi network you are connected to and scroll down to find "IPv4 address" — that is your private IP. Alternatively, open Command Prompt, type ipconfig, and look for the line that says "IPv4 Address" under your active connection.

On Mac: Click the Apple menu, go to System Settings, then Network. Select WiFi on the left, click Details, and find "IPv4 Address" in the TCP/IP tab. On older Macs, go to System Preferences instead of System Settings.

On iPhone or iPad: Open Settings, tap WiFi, then tap the information icon (i) next to your network name. You will see "IP Address" listed there — that is your private address.

On Android: Open Settings, go to WiFi, long-press the network you are connected to, and tap Modify. Check the "Show advanced options" box if needed. Your private IP address appears under "IP address" in the advanced section.

Why your router uses private addresses instead of public ones

Your internet provider gives you one public IP address for your entire home. If every device used a public address, you would need dozens of addresses and dozens of separate connections to the internet — which would be expensive and slow. Instead, your router acts as a middleman. It uses private addresses for devices inside your home and translates all their traffic through your single public address. This is called Network Address Translation, or NAT.

Private addresses also protect your devices. Because they are not visible on the internet, a hacker scanning the web cannot find them directly. They would have to get past your router first. Your router's firewall blocks incoming connections that you did not start, so a device on your network is much harder to attack than if it had a public address exposed to the entire internet.

The ranges your router chooses from

Your router picks private IP addresses from three ranges that the internet standards reserve for home and business networks. Most home routers use addresses starting with 192.168 (like 192.168.1.1 through 192.168.1.254) or 10.0 (like 10.0.0.1 through 10.0.0.254). Some use 172.16 through 172.31. Your router's manual or settings page will tell you which range it uses, but you do not need to change it — the default works fine for almost every home network.

Your router itself also has a private IP address, usually 192.168.1.1 or 10.0.0.1. This is the address you type into your browser when you log into your router's settings to change your WiFi password or restart it. If you forget your router's address, you can find it in the same place you found your device's private IP — it will be listed as "Default Gateway" or "Router."

When your private IP address changes and why

Your router assigns private IP addresses using a system called DHCP (Dynamic Host Configuration Protocol). Most of the time, your devices keep the same private address for weeks or months. But if you restart your device, restart your router, or stay disconnected for a while, your router may assign a new one when you reconnect. This is normal and does not affect how your network works — your device will still connect and communicate the same way.

If you have a device that needs to stay at the same private address — like a network printer or security camera — you can set a static IP address in your router's settings. This tells the router to always give that device the same number. Most routers have a section called "DHCP Reservation" or "Static IP" where you can do this, though the exact steps vary by router model.

Private IP addresses and remote access

Because private IP addresses do not work outside your home network, you cannot reach a device using its private address from your phone when you are away from home. If you want to check a security camera or access a computer remotely, you need either a service that tunnels through your public IP (like many camera apps do) or a VPN set up on your home network. Trying to connect to a private address from outside your home will straightforward fail — the request never reaches your router.

This is actually a security feature. It means someone on the internet cannot accidentally connect to your printer or smart home devices by guessing an address. They would have to know your public IP address, then somehow get your router to forward the connection to the right private address — which requires you to set that up intentionally.

Frequently Asked Questions

Is my private IP address the same as my public IP address?

No. Your private IP address (like 192.168.1.5) only works inside your home network. Your public IP address is what the internet sees and is assigned by your internet provider. You can find your public IP by searching "what is my IP" in a browser, but your private address will not appear there.

Can someone on the internet see my private IP address?

No. Private IP addresses are invisible to the internet by design. Websites and services you visit see only your public IP address. Your private addresses stay hidden behind your router's firewall and are only used for communication between devices inside your home.

What happens if two devices on my network have the same private IP address?

Your router will not normally assign the same address twice, but if it happens by accident, both devices will have trouble connecting. They may drop offline or lose connection. Restarting both devices usually fixes it — your router will assign them different addresses when they reconnect.

Do I need to change my private IP address range?

No. The default range your router uses (usually 192.168.1.x) works for almost every home network. You only need to change it if you are connecting two routers together and they are using the same range, which is rare. Your router's settings can change this if needed, but it is not something most people ever have to do.