CIDR Block Estimator - for AWS

Calculate a top-level CIDR block (supernet) size for your IP-plan based on your actual infrastructure needs.

Must be between 16 and 28 (without the '/' prefix)

Must be between 1 and 3

Must be between 16 and 28 (without the '/' prefix)

Must be between 1 and 10000

Minimum 2 environments (one environment will be used for platform/shared services)

Top-Level CIDR Block Pattern:

Must be between /8 and /24

Network Details:

Network Planning Breakdown: