IP Subnet Calculator
Calculate IP subnets, CIDR blocks, and plan your network infrastructure
Network Input
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Network Summary
Detailed Analysis
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Network Class
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Network Type
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Wildcard Mask
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Max Subnets
VLSM Subnet Planning
Binary Representation
IP Address (Binary):
Enter IP address to see binary representation
Subnet Mask (Binary):
Enter subnet mask to see binary representation
Network Address (Binary):
Network calculation will appear here
IP Subnetting Guide
Class A Networks
1.0.0.0 - 126.255.255.255
Default mask: /8 (255.0.0.0)
16,777,214 hosts per network
Class B Networks
128.0.0.0 - 191.255.255.255
Default mask: /16 (255.255.0.0)
65,534 hosts per network
Class C Networks
192.0.0.0 - 223.255.255.255
Default mask: /24 (255.255.255.0)
254 hosts per network
Private Networks
10.0.0.0/8
172.16.0.0/12
192.168.0.0/16
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