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Subnet Mask Cheatsheet

Subnet Mask Cheatsheet

Owned by Kelli Higdon
Last updated: Mar 22, 2024
1 min read

 

 

CIDR

Hosts

Netmask

CIDR

Hosts

Netmask

/30

4

255.255.255.252

/29

8

255.255.255.248

/28

16

255.255.255.240

/27

32

255.255.255.224

/26

64

255.255.255.192

/25

128

255.255.255.128

/24

256

255.255.255.0

/23

512

255.255.254.0

/22

1024

255.255.252.0

/21

2048

255.255.248.0

/20

4096

255.255.240.0

/19

8192

255.255.224.0

/18

16384

255.255.192.0

/17

32768

255.255.128.0

/16

65536

255.255.0.0

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