MATRIX TABLE
For reasons of facilitated calculation I put the representation of all the bit of sub-network even if this one of it is not the real representation.
| allocated bits subnet mask |
IPv4 addresses number |
Equivalent space |
| 32 |
1 |
ppp ip |
| 31 |
2 |
| 30 |
4 -2 usables |
| 29 |
8 -2 usables |
| 28 |
16 -2 usables |
|
| 27 |
32 -2 usables |
| 26 |
64 -2 usables |
| 25 |
128 -2 usables |
| 24 |
256 -2 usables |
C Class |
| 23 |
512 -2 usables |
| 22 |
1024 -2 usables |
| 21 |
2048 -2 usables |
|
| 20 |
4096 -2 usables |
|
| 19 |
8192 -2 usables |
|
| 18 |
16384 -2 usables |
|
| 17 |
32768 -2 usables |
|
| 16 |
65536 -2 usables |
B Class |
| 16 |
131072 -2 usables |
|
| 15 |
262144 -2 usables |
|
| 14 |
524288 -2 usables |
|
| 13 |
1048576 -2 usables |
|
| 12 |
2097152 -2 usables |
|
| 11 |
4194304 -2 usables |
|
| 10 |
8388608 -2 usables |
|
| 09 |
16777216 -2 usables |
|
| 08 |
33554432 -2 usables |
A Class |
| 07 |
67108864 -2 usables |
|
| 06 |
134217728 -2 usables |
|
| 05 |
268435456 -2 usables |
|
| 04 |
536870912 -2 usables |
|
| 03 |
1073741824 -2 usables |
|
| 02 |
2147483648 -2 usables |
|
| 01 |
4294967296 -2 usables |
|
|
|
