What is a Public IP Address?

Globally unique IP addresses that are routable on the public internet.

Detailed Explanation

Public IP addresses are assigned by regional internet registries (RIRs) and internet service providers (ISPs). Unlike private IPs, these addresses are globally unique and can be reached directly from anywhere on the internet. Organizations and individuals are allocated public IP blocks based on their needs and must ensure they don't overlap with existing assignments.

Examples

  • 8.8.8.8 - Google Public DNS
  • 1.1.1.1 - Cloudflare DNS
  • 208.67.222.222 - OpenDNS