UPDATED SEPTEMBER 5, 2026

A useful tool. A few ground rules.

IPToolbox provides free network information and calculations.

Verify before making changes

Results are general-purpose information. They do not prove ownership, identity, reachability, correct routing or permission to access a network. Check calculations and DNS answers independently before using them for production changes.

Use shared resources responsibly

Do not overload the service, bypass its request limits or use it to facilitate abuse. Programmatic IP requests are welcome at reasonable volumes. Access may be limited to keep the tools available.

Availability and external content

The tools are provided as available, without an uptime commitment. DNS providers and linked sites can change or become unavailable. Features may evolve. External links do not guarantee the accuracy or availability of another site's content.