IPv4 Address Lookup Tool
Specialized tool for IPv4 address information and analysis
Try these IPv4 examples:
IPv4 Address Information
Address Format
IPv4 addresses use 32-bit numbers expressed as four decimal numbers (0-255) separated by dots.
Global Reach
IPv4 addresses are used worldwide and can be geolocated to determine approximate location.
ISP Assignment
Each IPv4 address is assigned to an Internet Service Provider or organization.
Network Analysis
Get detailed network information including subnet, organization, and routing details.
IPv4 vs IPv6
| 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 |
| Adoption | Widely used | Growing adoption |
IPv4 Frequently Asked Questions
What is an IPv4 address?
IPv4 (Internet Protocol version 4) is the fourth version of the Internet Protocol. It uses 32-bit addresses and is the most widely used version of IP.
How many IPv4 addresses are there?
There are approximately 4.3 billion IPv4 addresses available (2^32), which is why we're transitioning to IPv6.
What are private IPv4 addresses?
Private IPv4 addresses (like 192.168.x.x, 10.x.x.x, 172.16-31.x.x) are reserved for use within private networks and are not routable on the public internet.
Can I lookup private IPv4 addresses?
Private IPv4 addresses cannot be geolocated since they're not publicly routable. Our tool will show that it's a private address.