My IPv4 Address
See your public IPv4 address — the four-part number (like 203.0.113.1) that websites and services use to reach your connection. One click, no signup.
Your IPv4 Address
Detecting…
What Is My IPv4 Address?
Your IPv4 address is the 32-bit number that identifies your device on the internet in the classic format: four groups of digits from 0 to 255, separated by dots (e.g. 198.51.100.1). When you open a website or use an app, the server sees this address so it knows where to send the response. Your router or ISP assigns this “public” IPv4; devices inside your home usually have private IPv4 addresses (like 192.168.1.5) that are not visible online.
Billions of devices still use IPv4. Because the pool of IPv4 addresses is limited, many networks also support IPv6. If you want to see both, use our What is my IP page. For full details (location, ISP, VPN flag), use our IP lookup or IP location finder.
How to Use This Tool
This page shows your current public IPv4 as soon as it loads. No form to fill — we detect it from your connection. If you need your IPv6 as well, go to What is my IP. To look up any other IP (not yours), use IP lookup or reverse DNS lookup for the hostname.
Features
- Instant display of your public IPv4
- Optional location (city, country) when available
- No signup, no storage of your IP
- Works on any device or network
Why Use This Tool
You might need your IPv4 for port forwarding, game servers, whitelisting, or VPN checks. Some apps and support teams ask for it to troubleshoot. Pair it with a ping test or traceroute tool for diagnostics, or with our DNS lookup when checking domain settings.
FAQs
What is my IPv4 address?
Your IPv4 address is the 32-bit number (e.g. 192.0.2.1) that identifies your device on the internet. This page shows the public IPv4 address that websites see.
Why do I only see IPv4 and not IPv6?
Many networks still use IPv4 only. If your ISP or router has not enabled IPv6, you will only have an IPv4 address. Check our What is my IP page to see both.
Can my IPv4 address change?
Yes. Most home connections use dynamic IPv4; your ISP assigns an address that can change when you reconnect or when the lease expires.
What is the difference between IPv4 and IPv6?
IPv4 uses four groups of numbers (32 bits); IPv6 uses a longer hexadecimal format (128 bits). IPv6 was introduced to provide more addresses; both can be in use at once.
Is checking my IPv4 address free?
Yes. Our tool is free with no signup. We do not store your IP.