Network Utility
IP Subnet & CIDR Calculator
Calculate subnet masks, total usable host IP addresses, network IDs, and broadcast addresses.
Subnet Mask
255.255.255.0
Usable Hosts
254
Network Address
192.168.1.0
Broadcast Address
192.168.1.255
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Subnet FAQs
What is CIDR Notation?
CIDR (Classless Inter-Domain Routing) notation represents an IP address and its associated network mask suffix (e.g. /24 represents a 255.255.255.0 mask).