PacketGauge.systems

Focused tool

CIDR tools

Split or aggregate IPv4 and IPv6 networks locally.

Run CIDR tools

Examples

Use a validated example to fill the form and execute the exact input.

Usage and limits

Public network lookups use the canonical v1 JSON API with the existing input validation, timeout, response-size, rate, and SSRF controls. Tools using an API route transmit your input to this service. Browser-only tools are explicitly labelled.

API documentation: API reference. Canonical route: /api/v1/cidr/.

IP calculatorCalculate network details from an IPv4 or IPv6 CIDR. CIDR overlapCompare IPv4 and IPv6 networks for containment and overlap. IPv6 toolboxNormalize, classify, reverse, and inspect an IPv6 address.

Need a broader diagnosis?

Run Domain Diagnostics for a correlated result.

Run Domain Diagnostics