One |   1 |   2 |   3 |   4 |   5 |   6 |   7 |   8 
      Two |   9 |  10 |  11 |  12 |  13 |  14 |  15 |  16 
    Three |  17 |  18 |  19 |  20 |  21 |  22 |  23 |  24 
     Four |  25 |  26 |  27 |  28 |  29 |  30 |  31 |  32 
                                                          
     Mask | 128 | 192 | 224 | 240 | 248 | 252 | 254 | 255 
 Wildcard | 127 |  63 |  31 |  15 |   7 |   3 |   1 |   0 
    Hosts | 126 |  62 |  30 |  14 |   6 |   2 |   0 | n/a 
Bit Value | 128 |  64 |  32 |  16 |   8 |   4 |   2 |   1