IPv6 CIDR/Prefix Calculator

Calculate IPv6 network ranges, subnets, and prefix information

What is IPv6 CIDR/Prefix Calculation?

IPv6 CIDR/Prefix calculation determines network boundaries and subnet information from IPv6 addresses with prefix lengths. For example, "2001:db8::/32" defines a network with 32 network bits and 96 host bits, allowing for 2^96 possible addresses. This tool calculates network ranges, subnet masks, host counts, and provides detailed subnet analysis for IPv6 network planning.

How Does IPv6 CIDR/Prefix Calculation Work?

The calculation process analyzes IPv6 networks and determines subnet information:

  1. Parse input: Extract IPv6 address and prefix length from CIDR notation
  2. Calculate network: Apply subnet mask to determine network address
  3. Determine range: Calculate first and last addresses in the network
  4. Count addresses: Calculate total possible addresses (2^(128-prefix))
  5. Analyze type: Determine network type and provide subnet information

This tool helps with IPv6 network planning and subnet design!