My IPv4 Address
Discover your IPv4 address and network information instantly
About IPv4 Addresses
32-bit Format
IPv4 addresses use 32-bit numbers expressed as four decimal numbers (0-255) separated by dots, like 192.168.1.1.
Global Standard
IPv4 is the most widely used version of the Internet Protocol, powering most of today's internet traffic.
Address Space
IPv4 provides approximately 4.3 billion unique addresses, which is why we're transitioning to IPv6.
Geolocation
IPv4 addresses can be geolocated to determine approximate geographic location and ISP information.
IPv4 vs IPv6 Comparison
| Feature | IPv4 | IPv6 |
|---|---|---|
| Address Length | 32 bits | 128 bits |
| Address Format | 192.168.1.1 | 2001:0db8:85a3::8a2e:0370:7334 |
| Total Addresses | ~4.3 billion | ~340 undecillion |
| Current Usage | Dominant | Growing |
IPv4 Frequently Asked Questions
What is an IPv4 address?
An IPv4 address is a 32-bit numerical identifier assigned to devices connected to the internet. It's written as four decimal numbers separated by dots (e.g., 192.168.1.1).
Why is IPv4 being replaced by IPv6?
IPv4 has a limited address space of about 4.3 billion addresses, which is running out due to internet growth. IPv6 provides a much larger address space with 340 undecillion addresses.
Can I still use IPv4?
Yes, IPv4 is still widely used and will continue to be supported for many years. Most websites and services still primarily use IPv4.
What's the difference between public and private IPv4 addresses?
Public IPv4 addresses are globally unique and routable on the internet. Private IPv4 addresses (like 192.168.x.x) are used within local networks and are not routable on the public internet.