IP address analyzer
Validate and normalize IPv4 or IPv6 and identify common private, CGNAT, loopback and documentation address ranges.
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Network calculators and address tools
Go beyond reading your current public IP. Check whether an address from your network settings belongs to a private range and work out the size of a subnet before changing a configuration. These are calculation tools: they do not connect to the entered address or scan ports.
IPv4 subnet and CIDR calculator
Calculate network, subnet mask, broadcast, address range and host count for IPv4 CIDR, including /0, /31 and /32.
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