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Public or Private IP Checker

Is an IP address public, private, loopback, CGNAT or reserved?

About Public or Private IP Checker

Check which special-purpose range an address belongs to (RFC 1918 private networks, carrier-grade NAT, loopback, link-local, documentation, multicast, unique local IPv6 and more) and whether it can be reached over the internet.

How to use

  1. Type an IP address, host name, domain or coordinates – or use the values filled in for you.
  2. Press Enter or the button – results appear instantly, and the page link keeps your query for sharing.
  3. Click any value to copy it; tables can be sorted and exported as CSV or JSON.

WhereNex does not store the addresses, names or positions you look up. IP locations come from our own copy of the DB-IP database (CC BY 4.0) and are approximate.

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