NETWORKING / FREE TOOL
IPv6 Prefix Calculator
Calculate an expanded IPv6 prefix network, first/last address and address count locally.
✳ Input stays in this browser. No account needed.
Advisory tool; no server requests or external processing. Verify critical results independently.
About this utility
Calculate an expanded IPv6 prefix network, first/last address and address count locally. Double-check results before applying them to production infrastructure, and follow organizational security policies when using third-party websites.
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