Your public IP address is the unique identifier that your device is identified on the Internet and can be quickly queried in a variety of ways. 1. Search for "My IP" through Google to display it directly; 2. Visit online service websites such as whatismyipaddress.com or ipinfo.io to view; 3. Log in to the router management interface and search in WAN or Internet status. In addition, the private IP address is used for local network communication. Windows system can enter ipconfig at the command prompt to view the IPv4 address; Mac users can view the inet address in the system preferences-network; Linux users can enter hostname-I or ip addr show query at the terminal. Understanding IP addresses can help with remote access, network troubleshooting, port forwarding configuration and geolocation content filtering. It is important to note that the public IP of most home broadband users will be changed regularly. If you need a fixed IP, you usually need to apply for a business service plan.
Your IP address is a unique identifier assigned to your device when it connects to the internet. It allows devices to communicate with each other over networks. If you're asking, “What is my public IP address?” — that's the one visible to the internet at large, and you can find it quickly by searching online.

How to check your public IP address
If you want to know what your public-facing IP address is, here's how to find it without installing any tools:

- Search on Google : Just type "What is my IP" into the search bar, and Google will show your public IP right at the top.
- Use an online service : Websites like whatismyipaddress.com or ipinfo.io will display your public IP as soon as you visit them.
- Check your router's status page : This method takes a few more steps, but if you log into your home router's admin panel (usually through a browser), it often shows the current public IP under WAN or internet status.
These are the simplest ways, especially if you just need a quick answer.
What about your private IP address?
While your public IP is used for internet-wide communication, your private IP address is used within your local network — like your home or office network. Here's how to find it:

On Windows:
- Open Command Prompt.
- Type
ipconfig
and press Enter. - Look for "IPv4 Address" — it'll be something like
192.168.xx
On Mac:
- Go to System Preferences > Network.
- Select your active connection (Wi-Fi or Ethernet).
- Your IP address will be displayed next to "inet".
On Linux:
- Open a terminal.
- Type
hostname -I
orip addr show
and look for your local IP.
Private IPs aren't visible outside your network, so they're mainly useful when troubleshooting or setting up devices like printers or game servers locally.
Why does your IP address matter?
Knowing your IP can help in several situations:
- Setting up remote access or a security camera system
- Troubleshooting network issues
- Configuring port forwarding on your router
- Checking geolocation or filtering content based on region
It's also worth noting that public IPs can change — especially if you're on a residential internet plan. ISPs often reassign them periodically unless you have a static IP plan, which is usually offered for business accounts.
Basically that's it.
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