/8   255.0.0.0         0      (1)        6777214  
/9   255.128.0.0       2      (0)        8388606  
/10  255.192.0.0       4      (2)        4194302  
/11  255.224.0.0       8      (6)        2097150  
/12  255.240.0.0      16      (14)       1048574  
/13  255.248.0.0      32      (30)       524286  
/14  255.252.0.0      64      (62)       262142  
/15  255.254.0.0      128     (126)      131070  
/16  255.255.0.0      256     (254)      65534  
/17  255.255.128.0    512     (510)      32766  
/18  255.255.192.0    1024    (1022)     16382  
/19  255.255.224.0    2048    (2046)     8190  
/20  255.255.240.0    4096    (4094)     4094  
/21  255.255.248.0    8192    (8190)     2046  
/22  255.255.252.0    16384   (16382)    1022  
/23  255.255.254.0    32768   (32766)    510  
/24  255.255.255.0    65536   (65534)    254  
/25  255.255.255.128  131072  (131070)   126  
/26  255.255.255.192  262144  (262142)   62  
/27  255.255.255.224  524288  (524286)   30  
/28  255.255.255.240  1048576 (1048574)  14  
/29  255.255.255.248  2097152 (2097150)  6  
/30  255.255.255.252  4194304 (4194302)  2