|
Number of bits in mask |
Netmask |
|---|---|
|
32 |
255.255.255.255 |
|
31 |
255.255.255.254 |
|
30 |
255.255.255.252 |
|
29 |
255.255.255.248 |
|
28 |
255.255.255.240 |
|
27 |
255.255.255.224 |
|
26 |
255.255.255.192 |
|
25 |
255.255.255.128 |
|
24 |
255.255.255.0 |
|
23 |
255.255.254.0 |
|
22 |
255.255.252.0 |
|
21 |
255.255.248.0 |
|
20 |
255.255.240.0 |
|
19 |
255.255.224.0 |
|
18 |
255.255.192.0 |
|
17 |
255.255.128.0 |
|
16 |
255.255.0.0 |
|
15 |
255.254.0.0 |
|
14 |
255.252.0.0 |
|
13 |
255.248.0.0 |
|
12 |
255.240.0.0 |
|
11 |
255.224.0.0 |
|
10 |
255.192.0.0 |
|
9 |
255.128.0.0 |
|
8 |
255.0.0.0 |
|
7 |
254.0.0.0 |
|
6 |
252.0.0.0 |
|
5 |
248.0.0.0 |
|
4 |
240.0.0.0 |
|
3 |
224.0.0.0 |
|
2 |
192.0.0.0 |
|
1 |
128.0.0.0 |
|
0 |
0.0.0.0 |