Networking / United States

Networking calculators

Start with CIDR and subnet tools for cloud architecture, AWS VPC planning, troubleshooting, and networking study.

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IPv4 and AWS VPC

IP subnet calculator

Calculate CIDR blocks, subnet masks, broadcast addresses, usable host counts, and AWS VPC usable IPs.

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AWS VPC planning

AWS VPC subnet planner

Start from a VPC CIDR, split it into equal subnets, and see the CIDR, mask, usable range, and AWS usable IP count for each subnet.

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