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table of subnet mask classes for purposes of medium article: https://medium.com/p/fd8ea23f6608
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| subnet mask notation | CIDR notation | available hosts | class | |
|---|---|---|---|---|
| 0.0.0.0 | /0 | 4294967294 | the internet | |
| 255.0.0.0 | /8 | 16777214 | Class A | |
| 255.255.0.0 | /16 | 65533 | Class B | |
| 255.255.255.0 | /24 | 254 | Class C |
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