Decimal Value                   63.                   25.                   15.                    5

              128 64 32 16 8 4 2 1. 128 64 32 16 8 4 2 1. 128 64 32 16 8 4 2 1. 128 64 32 16 8 4 2 1
binary addr     0  0  1  1 1 1 1 1.   0  0  0  1 1 0 1 0.   0  0  0  0 1 1 1 1.   0  0  0  0 0 1 0 1
binary SM       1  1  1  1 1 1 1 1.   1  1  1  1 1 1 1 1.   1  1  1  1 1 1 1 1.   0  0  0  0 0 0 0 0
                                                                              .
                                                                             /|\
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                                        This is where the network block ends and the host address begins.