Developer & Network Planning model

IP Classifier

Classify IPv4/IPv6 addresses by private, loopback, multicast, and more.

IP Classifier identifies whether an IPv4 or IPv6 address falls into private, loopback, multicast, reserved, or public ranges. Use it to inspect addresses from logs, configs, tickets, or network notes before deciding how they should be routed or documented.

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Input guidance

Paste the IPv4 or IPv6 address.

How to use this tool

Paste the IPv4 or IPv6 address.
Run the classifier.
Review the classification and verify operational meaning against your actual network context.

IP Input

Classification

IP version: IPv4

Private: Yes

Loopback: No

Link-local: No

Multicast: No

Documentation range: No

Unspecified: No

Formula or method

Parses the submitted address with Ruby's IPAddr library and reports whether it is IPv4 or IPv6.
Checks the address against configured private, loopback, link-local, multicast, documentation, and unspecified CIDR ranges.
Invalid address strings return an invalid result instead of a range classification.

How to interpret the result

Review the task assumptions, timing, handoffs, and output labels before using the result in a larger workflow.

Review note and limitations

Planning results depend on the assumptions, capacity, timing, and handoff rules entered by the user.
Use the output as decision support, then confirm constraints and human factors before changing commitments.

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