Ravi Sir's Cards › AWS
CIDR math: how many IPs?
CIDR host count: total IPs = 2 to the power of (32 minus prefix); /16 = 65,536, /20 = 4,096, /24 = 256; AWS subnets lose 5.

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CIDR host count: total IPs = 2 to the power of (32 minus prefix)
/16 = 65,536, /20 = 4,096, /24 = 256
AWS subnets lose 5.