IP Address Information
Classify an address you type. No network scan.
Ctrl+Enter runs. Ctrl+Shift+Backspace clears.
This only classifies the address you typed. It does not contact that host.
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Checks syntax and well-known ranges such as private, loopback, link-local and documentation space. It does not query the address.
About this tool
Find out what kind of address you are looking at in a log or a config. Paste an IPv4 or IPv6 address to check its syntax, version and well-known range, without contacting it.
How to use it
- 01
Paste an IP address.
- 02
Read its version and range type.
- 03
Use the result in your firewall or config review.
Frequently asked questions
Does it look up the location of the IP?
No. It checks syntax and well-known ranges only, and never queries the address or a geolocation service.
What is a private address?
Ranges such as 10.0.0.0/8, 172.16.0.0/12 and 192.168.0.0/16 that are used inside local networks and are not routed on the internet.