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IPv4 Subnet Calculator

Calculate network ranges and subnets for IPv4. Get network addresses, broadcast addresses, and usable host ranges from CIDR notations.

ipv4cidrnetwork
CIDR input
Mask
255.255.255.0
Network
192.168.1.0
Broadcast
192.168.1.255
First host
192.168.1.1
Last host
192.168.1.254
Total addresses
256
Usable hosts
254

Subnet details

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