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📐 Subnet Calculator
IPv4 CIDR breakdown. Runs entirely in your browser.
CIDR Input
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Examples: 10.0.0.0/8 · 172.16.0.0/12 · 192.168.0.0/16
10.0.0.0/8
172.16.0.0/12
192.168.1.0/24
10.10.0.0/16
192.168.0.0/16
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