🔢 Network Calculation Tools

Thirteen network calculation utilities for subnet analysis, CIDR notation, IP ranges, IPv6 addressing and VLSM planning.

🔧 Subnet Calculator

Calculate subnet masks, network addresses, and broadcast addresses.

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📊 CIDR Calculator

Convert between CIDR notation and IP ranges.

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🎯 IP Range Calculator

Calculate IP range statistics and available addresses.

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🌐 IPv6 Calculator

Analyze and calculate IPv6 subnets and prefixes.

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🏢 ASN Lookup

Find Autonomous System Number information.

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🔀 Wildcard Mask Calculator

Convert a subnet mask to its ACL wildcard mask.

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🧮 VLSM Calculator

Plan variable length subnets from host requirements.

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🏷️ Network Class Identifier

Identify an IPv4 address's classful network class.

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🔢 IP to Binary/Hex Converter

Convert an IPv4 address to binary, hex and decimal.

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📋 Subnet CIDR Cheat Sheet

Reference table of every CIDR prefix, mask and hosts.

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🔒 Private IP Checker

Check if an IP falls in a private or reserved range.

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🔁 IPv4 to IPv6 Mapped Converter

Convert an IPv4 address to IPv4-mapped IPv6.

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🆔 EUI-64 Calculator

Convert a MAC address to a modified EUI-64 ID.

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