CIDR Calculator

Calculate IP address ranges and subnets from CIDR blocks. Essential for network configuration and cloud infrastructure planning.

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Network engineering for dividing IP ranges (subnets) in cloud environments like AWS (VPCs) and corporate physical networks.

Classless Inter-Domain Routing (CIDR) uses a slash followed by the number of 'masked' bits (e.g., /24) to define the network size.

Fun Fact: IPv4 provides about 4.3 billion addresses—a number that was reached globally in 2011, leading to the transition to IPv6.

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