Subnet / CIDR Calculator

Compute network address, broadcast, range, mask & host count from IP/CIDR

FormatIP / CIDR

Valid IPOctets

CIDRPrefix

CalcResult

Enter an IPv4 address with CIDR prefix, e.g. 10.0.0.0/8

Network Address

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Broadcast Address

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Subnet Mask

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Wildcard Mask

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Usable Host Range

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Host Count

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Prefix Length

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Class

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Binary Breakdown