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Subnet Calculator

v1.2.0

Calculate network ranges, masks, and host boundaries for IPv4 CIDR blocks.

IPv4/IPv6 subnet calculator showing usable ranges, wildcard masks, and binary representations.

How to use
  • →Enter an IP address and subnet mask or CIDR prefix.
  • →Switch between IPv4 and IPv6 modes using the toggle.
  • →The Results panel shows all key network parameters at a glance.

Enter a CIDR notation and click Calculate to see subnet details.