Subnet Tool by Wetenkamp
A quick IPv4 subnet calculator: type an address with a prefix and get the network, broadcast, mask, wildcard, first and last host, total and usable addresses, and the address class. Runs locally.
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Extension Metadata
Permissions and data
More information
- Add-on Links
- Version
- 4.5
- Size
- 27.37 KB
- Last updated
- a month ago (Jun 23, 2026)
- Related Categories
- License
- The Unlicense
- Version History
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