CIDR & Subnet Calculator
CIDR (Classless Inter-Domain Routing) writes an IP address and its network size together, like 192.168.1.10/24. Enter one to see the network and broadcast addresses, subnet mask, and the first and last usable host — useful for subnetting, firewall rules and VPC planning.
Tool results are generated in English.
Leathanaigh coibhneasta
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Solúfar fadhbanna criticiúla laistigh de 30 nóiméad — gan stad, 7 lá sa tseachtain.