Ip Classes
Understanding Ip classes can be a dauting task, the following table should help to understand it a little better :
| 255.255.192.0 | 0.0.63.255 | /18 | 16,382 | 64 | Class 'C's |
| 255.255.224.0 | 0.0.31.255 | /19 | 8,190 | 32 | Class 'C's |
| 255.255.240.0 | 0.0.15.255 | /20 | 4,094 | 16 | Class 'C's |
| 255.255.248.0 | 0.0.7.255 | /21 | 2,046 | 8 | Class 'C's |
| 255.255.252.0 | 0.0.3.255 | /22 | 1,022 | 4 | Class 'C's |
| 255.255.254.0 | 0.0.1.255 | /23 | 510 | 2 | Class 'C's |
| 255.255.255.0 | 0.0.0.255 | /24 | 254 | 1 | Class 'C's |
| 255.255.255.128 | 0.0.0.127 | /25 | 126 | 128 | Hosts |
| 255.255.255.192 | 0.0.0.63 | /26 | 62 | 64 | Hosts |
| 255.255.255.224 | 0.0.0.31 | /27 | 30 | 32 | Hosts |
| 255.255.255.240 | 0.0.0.15 | /28 | 14 | 16 | Hosts |
| 255.255.255.248 | 0.0.0.7 | /29 | 6 | 8 | Hosts |
| 255.255.255.252 | 0.0.0.3 | /30 | 2 | 4 | Hosts |
| 255.255.255.254 | 0.0.0.1 | /31 | 0 | 2 | Hosts |
| 255.255.255.255 | 0.0.0.0 | /32 | 1 | 1 | Host |