Free IP Address Lookup

Use this tool to find and validate IP addresses:

• Click 'Get My IP' to automatically detect and display your current public IP address
• Or enter any IP address (IPv4 or IPv6) in the input field to validate and analyze it
• Review the results to see IP version, type, and scope (public/private/localhost)

An IP (Internet Protocol) address is a unique identifier assigned to devices on a network:

• Identification: Every device connected to the internet or a network has a unique IP address
• Types: IPv4 (32-bit, e.g., 192.168.1.1) and IPv6 (128-bit, e.g., 2001:0db8::1)
• Purpose: IP addresses enable devices to communicate with each other over networks and the internet

There are two versions of IP addresses in use today:

• IPv4: IPv4 uses 32-bit addresses (4.3 billion possible addresses). Format: four numbers separated by dots (e.g., 192.168.1.1). Still the most commonly used version.
• IPv6: IPv6 uses 128-bit addresses (340 undecillion possible addresses). Format: eight groups of hexadecimal numbers separated by colons (e.g., 2001:0db8::1). Designed to replace IPv4 due to address exhaustion.
• Compatibility: Most modern networks support both IPv4 and IPv6. IPv6 is backwards compatible and provides better security features.

IP addresses are categorized based on their scope and accessibility:

• Private IP Addresses: Used within private networks (home, office). Not routable on the public internet. Ranges: 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16. Devices behind routers typically have private IPs.
• Public IP Addresses: Globally unique addresses routable on the public internet. Assigned by ISPs. Used to identify devices on the internet. Your router typically has one public IP visible to the internet.
• Localhost: Special address (127.0.0.1 for IPv4, ::1 for IPv6) that refers to the local machine. Used for testing and local development.