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IP Address Lookup Guide
Reference TableUnderstanding IP addresses, types, and how to find your public and private IP.
About This Tool
Every device on a network has a private IP (assigned by your router); the network shares one public IP (assigned by your ISP). IPv4 addresses are 32-bit (4 billion possible); IPv6 are 128-bit (340 trillion trillion trillion possible). IPv4 exhaustion began around 2011.