CIDR to Subnet Mask Conversion

Front

CIDR /32

Back

Mask: 255.255.255.255

Total IP addresses: 1

Total Host addresses: 0

Front

CIDR /31

Back

Mask: 255.255.255.254

Total IP addresses: 2

Total Host addresses: 0

Front

CIDR /30

Back

Mask: 255.255.255.252

Total IP addresses: 4

Total Host addresses: 2

Front

CIDR /29

Back

Mask: 255.255.255.248

Total IP addresses: 8

Total Host addresses: 6

Front

CIDR /28

Back

Mask: 255.255.255.240

Total IP addresses: 16

total Host addresses: 14

Front

CIDR /27

Back

Mask: 255.255.255.224

Total IP addresses: 32

Total Host addresses: 30

Front

CIDR /26

Back

Mask: 255.255.255.192

Total IP addresses: 64

Total Host addresses: 62

Front

CIDR /25

Back

Mask: 255.255.255.128

Total IP addresses: 128

Total Host addresses: 126

Front

CIDR /24

Back

Mask: 255.255.255.0

Total IP addresses: 256

Total Host addresses: 254