CIDR Table
Revision: 1.3 
Date: 2000/03/23 15:27:40 GMT 
Bits   Network       Broadcast          Netmask            Hostmask
====   =======       =========          =======            ========
/1     0.0.0.0       127.255.255.255    128.0.0.0          127.255.255.255
/1     128.0.0.0     255.255.255.255    128.0.0.0          127.255.255.255
/2     0.0.0.0       63.255.255.255     192.0.0.0          63.255.255.255
/2     64.0.0.0      127.255.255.255    192.0.0.0          63.255.255.255
/2     128.0.0.0     191.255.255.255    192.0.0.0          63.255.255.255
/2     192.0.0.0     255.255.255.255    192.0.0.0          63.255.255.255
/3     0.0.0.0       31.255.255.255     224.0.0.0          31.255.255.255
/3     32.0.0.0      63.255.255.255     224.0.0.0          31.255.255.255
/3     64.0.0.0      95.255.255.255     224.0.0.0          31.255.255.255
/3     96.0.0.0      127.255.255.255    224.0.0.0          31.255.255.255
/3     128.0.0.0     159.255.255.255    224.0.0.0          31.255.255.255
/3     160.0.0.0     191.255.255.255    224.0.0.0          31.255.255.255
/3     192.0.0.0     223.255.255.255    224.0.0.0          31.255.255.255
/3     224.0.0.0     255.255.255.255    224.0.0.0          31.255.255.255
/4     0.0.0.0       15.255.255.255     240.0.0.0          15.255.255.255
/4     16.0.0.0      31.255.255.255     240.0.0.0          15.255.255.255
/4     32.0.0.0      47.255.255.255     240.0.0.0          15.255.255.255
/4     48.0.0.0      63.255.255.255     240.0.0.0          15.255.255.255
/4     64.0.0.0      79.255.255.255     240.0.0.0          15.255.255.255
/4     80.0.0.0      95.255.255.255     240.0.0.0          15.255.255.255
/4     96.0.0.0      111.255.255.255    240.0.0.0          15.255.255.255
/4     112.0.0.0     127.255.255.255    240.0.0.0          15.255.255.255
/4     128.0.0.0     143.255.255.255    240.0.0.0          15.255.255.255
/4     144.0.0.0     159.255.255.255    240.0.0.0          15.255.255.255
/4     160.0.0.0     175.255.255.255    240.0.0.0          15.255.255.255
/4     176.0.0.0     191.255.255.255    240.0.0.0          15.255.255.255
/4     192.0.0.0     207.255.255.255    240.0.0.0          15.255.255.255
/4     208.0.0.0     223.255.255.255    240.0.0.0          15.255.255.255
/4     224.0.0.0     239.255.255.255    240.0.0.0          15.255.255.255
/4     240.0.0.0     255.255.255.255    240.0.0.0          15.255.255.255
/5     0.0.0.0       7.255.255.255      248.0.0.0          7.255.255.255
/5     8.0.0.0       15.255.255.255     248.0.0.0          7.255.255.255
/5     16.0.0.0      23.255.255.255     248.0.0.0          7.255.255.255
/5     24.0.0.0      31.255.255.255     248.0.0.0          7.255.255.255
/5     32.0.0.0      39.255.255.255     248.0.0.0          7.255.255.255
/5     40.0.0.0      47.255.255.255     248.0.0.0          7.255.255.255
/5     48.0.0.0      55.255.255.255     248.0.0.0          7.255.255.255
/5     56.0.0.0      63.255.255.255     248.0.0.0          7.255.255.255
/5     64.0.0.0      71.255.255.255     248.0.0.0          7.255.255.255
/5     72.0.0.0      79.255.255.255     248.0.0.0          7.255.255.255
/5     80.0.0.0      87.255.255.255     248.0.0.0          7.255.255.255
/5     88.0.0.0      95.255.255.255     248.0.0.0          7.255.255.255
/5     96.0.0.0      103.255.255.255    248.0.0.0          7.255.255.255
/5     104.0.0.0     111.255.255.255    248.0.0.0          7.255.255.255
/5     112.0.0.0     119.255.255.255    248.0.0.0          7.255.255.255
/5     120.0.0.0     127.255.255.255    248.0.0.0          7.255.255.255
/5     128.0.0.0     135.255.255.255    248.0.0.0          7.255.255.255
/5     136.0.0.0     143.255.255.255    248.0.0.0          7.255.255.255
/5     144.0.0.0     151.255.255.255    248.0.0.0          7.255.255.255
/5     152.0.0.0     159.255.255.255    248.0.0.0          7.255.255.255
/5     160.0.0.0     167.255.255.255    248.0.0.0          7.255.255.255
/5     168.0.0.0     175.255.255.255    248.0.0.0          7.255.255.255
/5     176.0.0.0     183.255.255.255    248.0.0.0          7.255.255.255
/5     184.0.0.0     191.255.255.255    248.0.0.0          7.255.255.255
/5     192.0.0.0     199.255.255.255    248.0.0.0          7.255.255.255
/5     200.0.0.0     207.255.255.255    248.0.0.0          7.255.255.255
/5     208.0.0.0     215.255.255.255    248.0.0.0          7.255.255.255
/5     216.0.0.0     223.255.255.255    248.0.0.0          7.255.255.255
/5     224.0.0.0     231.255.255.255    248.0.0.0          7.255.255.255
/5     232.0.0.0     239.255.255.255    248.0.0.0          7.255.255.255
/5     240.0.0.0     247.255.255.255    248.0.0.0          7.255.255.255
/5     248.0.0.0     255.255.255.255    248.0.0.0          7.255.255.255
/6     0.0.0.0       3.255.255.255      252.0.0.0          3.255.255.255
/6     4.0.0.0       7.255.255.255      252.0.0.0          3.255.255.255
/6     8.0.0.0       11.255.255.255     252.0.0.0          3.255.255.255
/6     12.0.0.0      15.255.255.255     252.0.0.0          3.255.255.255
/6     16.0.0.0      19.255.255.255     252.0.0.0          3.255.255.255
/6     20.0.0.0      23.255.255.255     252.0.0.0          3.255.255.255
/6     24.0.0.0      27.255.255.255     252.0.0.0          3.255.255.255
/6     28.0.0.0      31.255.255.255     252.0.0.0          3.255.255.255
/6     32.0.0.0      35.255.255.255     252.0.0.0          3.255.255.255
/6     36.0.0.0      39.255.255.255     252.0.0.0          3.255.255.255
/6     40.0.0.0      43.255.255.255     252.0.0.0          3.255.255.255
/6     44.0.0.0      47.255.255.255     252.0.0.0          3.255.255.255
/6     48.0.0.0      51.255.255.255     252.0.0.0          3.255.255.255
/6     52.0.0.0      55.255.255.255     252.0.0.0          3.255.255.255
/6     56.0.0.0      59.255.255.255     252.0.0.0          3.255.255.255
/6     60.0.0.0      63.255.255.255     252.0.0.0          3.255.255.255
/6     64.0.0.0      67.255.255.255     252.0.0.0          3.255.255.255
/6     68.0.0.0      71.255.255.255     252.0.0.0          3.255.255.255
/6     72.0.0.0      75.255.255.255     252.0.0.0          3.255.255.255
/6     76.0.0.0      79.255.255.255     252.0.0.0          3.255.255.255
/6     80.0.0.0      83.255.255.255     252.0.0.0          3.255.255.255
/6     84.0.0.0      87.255.255.255     252.0.0.0          3.255.255.255
/6     88.0.0.0      91.255.255.255     252.0.0.0          3.255.255.255
/6     92.0.0.0      95.255.255.255     252.0.0.0          3.255.255.255
/6     96.0.0.0      99.255.255.255     252.0.0.0          3.255.255.255
/6     100.0.0.0     103.255.255.255    252.0.0.0          3.255.255.255
/6     104.0.0.0     107.255.255.255    252.0.0.0          3.255.255.255
/6     108.0.0.0     111.255.255.255    252.0.0.0          3.255.255.255
/6     112.0.0.0     115.255.255.255    252.0.0.0          3.255.255.255
/6     116.0.0.0     119.255.255.255    252.0.0.0          3.255.255.255
/6     120.0.0.0     123.255.255.255    252.0.0.0          3.255.255.255
/6     124.0.0.0     127.255.255.255    252.0.0.0          3.255.255.255
/6     128.0.0.0     131.255.255.255    252.0.0.0          3.255.255.255
/6     132.0.0.0     135.255.255.255    252.0.0.0          3.255.255.255
/6     136.0.0.0     139.255.255.255    252.0.0.0          3.255.255.255
/6     140.0.0.0     143.255.255.255    252.0.0.0          3.255.255.255
/6     144.0.0.0     147.255.255.255    252.0.0.0          3.255.255.255
/6     148.0.0.0     151.255.255.255    252.0.0.0          3.255.255.255
/6     152.0.0.0     155.255.255.255    252.0.0.0          3.255.255.255
/6     156.0.0.0     159.255.255.255    252.0.0.0          3.255.255.255
/6     160.0.0.0     163.255.255.255    252.0.0.0          3.255.255.255
/6     164.0.0.0     167.255.255.255    252.0.0.0          3.255.255.255
/6     168.0.0.0     171.255.255.255    252.0.0.0          3.255.255.255
/6     172.0.0.0     175.255.255.255    252.0.0.0          3.255.255.255
/6     176.0.0.0     179.255.255.255    252.0.0.0          3.255.255.255
/6     180.0.0.0     183.255.255.255    252.0.0.0          3.255.255.255
/6     184.0.0.0     187.255.255.255    252.0.0.0          3.255.255.255
/6     188.0.0.0     191.255.255.255    252.0.0.0          3.255.255.255
/6     192.0.0.0     195.255.255.255    252.0.0.0          3.255.255.255
/6     196.0.0.0     199.255.255.255    252.0.0.0          3.255.255.255
/6     200.0.0.0     203.255.255.255    252.0.0.0          3.255.255.255
/6     204.0.0.0     207.255.255.255    252.0.0.0          3.255.255.255
/6     208.0.0.0     211.255.255.255    252.0.0.0          3.255.255.255
/6     212.0.0.0     215.255.255.255    252.0.0.0          3.255.255.255
/6     216.0.0.0     219.255.255.255    252.0.0.0          3.255.255.255
/6     220.0.0.0     223.255.255.255    252.0.0.0          3.255.255.255
/6     224.0.0.0     227.255.255.255    252.0.0.0          3.255.255.255
/6     228.0.0.0     231.255.255.255    252.0.0.0          3.255.255.255
/6     232.0.0.0     235.255.255.255    252.0.0.0          3.255.255.255
/6     236.0.0.0     239.255.255.255    252.0.0.0          3.255.255.255
/6     240.0.0.0     243.255.255.255    252.0.0.0          3.255.255.255
/6     244.0.0.0     247.255.255.255    252.0.0.0          3.255.255.255
/6     248.0.0.0     251.255.255.255    252.0.0.0          3.255.255.255
/6     252.0.0.0     255.255.255.255    252.0.0.0          3.255.255.255
/7     0.0.0.0       1.255.255.255      254.0.0.0          1.255.255.255
/7     2.0.0.0       3.255.255.255      254.0.0.0          1.255.255.255
/7     4.0.0.0       5.255.255.255      254.0.0.0          1.255.255.255
/7     6.0.0.0       7.255.255.255      254.0.0.0          1.255.255.255
/7     8.0.0.0       9.255.255.255      254.0.0.0          1.255.255.255
/7     10.0.0.0      11.255.255.255     254.0.0.0          1.255.255.255
/7     12.0.0.0      13.255.255.255     254.0.0.0          1.255.255.255
/7     14.0.0.0      15.255.255.255     254.0.0.0          1.255.255.255
/7     16.0.0.0      17.255.255.255     254.0.0.0          1.255.255.255
/7     18.0.0.0      19.255.255.255     254.0.0.0          1.255.255.255
/7     20.0.0.0      21.255.255.255     254.0.0.0          1.255.255.255
/7     22.0.0.0      23.255.255.255     254.0.0.0          1.255.255.255
/7     24.0.0.0      25.255.255.255     254.0.0.0          1.255.255.255
/7     26.0.0.0      27.255.255.255     254.0.0.0          1.255.255.255
/7     28.0.0.0      29.255.255.255     254.0.0.0          1.255.255.255
/7     30.0.0.0      31.255.255.255     254.0.0.0          1.255.255.255
/7     32.0.0.0      33.255.255.255     254.0.0.0          1.255.255.255
/7     34.0.0.0      35.255.255.255     254.0.0.0          1.255.255.255
/7     36.0.0.0      37.255.255.255     254.0.0.0          1.255.255.255
/7     38.0.0.0      39.255.255.255     254.0.0.0          1.255.255.255
/7     40.0.0.0      41.255.255.255     254.0.0.0          1.255.255.255
/7     42.0.0.0      43.255.255.255     254.0.0.0          1.255.255.255
/7     44.0.0.0      45.255.255.255     254.0.0.0          1.255.255.255
/7     46.0.0.0      47.255.255.255     254.0.0.0          1.255.255.255
/7     48.0.0.0      49.255.255.255     254.0.0.0          1.255.255.255
/7     50.0.0.0      51.255.255.255     254.0.0.0          1.255.255.255
/7     52.0.0.0      53.255.255.255     254.0.0.0          1.255.255.255
/7     54.0.0.0      55.255.255.255     254.0.0.0          1.255.255.255
/7     56.0.0.0      57.255.255.255     254.0.0.0          1.255.255.255
/7     58.0.0.0      59.255.255.255     254.0.0.0          1.255.255.255
/7     60.0.0.0      61.255.255.255     254.0.0.0          1.255.255.255
/7     62.0.0.0      63.255.255.255     254.0.0.0          1.255.255.255
/7     64.0.0.0      65.255.255.255     254.0.0.0          1.255.255.255
/7     66.0.0.0      67.255.255.255     254.0.0.0          1.255.255.255
/7     68.0.0.0      69.255.255.255     254.0.0.0          1.255.255.255
/7     70.0.0.0      71.255.255.255     254.0.0.0          1.255.255.255
/7     72.0.0.0      73.255.255.255     254.0.0.0          1.255.255.255
/7     74.0.0.0      75.255.255.255     254.0.0.0          1.255.255.255
/7     76.0.0.0      77.255.255.255     254.0.0.0          1.255.255.255
/7     78.0.0.0      79.255.255.255     254.0.0.0          1.255.255.255
/7     80.0.0.0      81.255.255.255     254.0.0.0          1.255.255.255
/7     82.0.0.0      83.255.255.255     254.0.0.0          1.255.255.255
/7     84.0.0.0      85.255.255.255     254.0.0.0          1.255.255.255
/7     86.0.0.0      87.255.255.255     254.0.0.0          1.255.255.255
/7     88.0.0.0      89.255.255.255     254.0.0.0          1.255.255.255
/7     90.0.0.0      91.255.255.255     254.0.0.0          1.255.255.255
/7     92.0.0.0      93.255.255.255     254.0.0.0          1.255.255.255
/7     94.0.0.0      95.255.255.255     254.0.0.0          1.255.255.255
/7     96.0.0.0      97.255.255.255     254.0.0.0          1.255.255.255
/7     98.0.0.0      99.255.255.255     254.0.0.0          1.255.255.255
/7     100.0.0.0     101.255.255.255    254.0.0.0          1.255.255.255
/7     102.0.0.0     103.255.255.255    254.0.0.0          1.255.255.255
/7     104.0.0.0     105.255.255.255    254.0.0.0          1.255.255.255
/7     106.0.0.0     107.255.255.255    254.0.0.0          1.255.255.255
/7     108.0.0.0     109.255.255.255    254.0.0.0          1.255.255.255
/7     110.0.0.0     111.255.255.255    254.0.0.0          1.255.255.255
/7     112.0.0.0     113.255.255.255    254.0.0.0          1.255.255.255
/7     114.0.0.0     115.255.255.255    254.0.0.0          1.255.255.255
/7     116.0.0.0     117.255.255.255    254.0.0.0          1.255.255.255
/7     118.0.0.0     119.255.255.255    254.0.0.0          1.255.255.255
/7     120.0.0.0     121.255.255.255    254.0.0.0          1.255.255.255
/7     122.0.0.0     123.255.255.255    254.0.0.0          1.255.255.255
/7     124.0.0.0     125.255.255.255    254.0.0.0          1.255.255.255
/7     126.0.0.0     127.255.255.255    254.0.0.0          1.255.255.255
/7     128.0.0.0     129.255.255.255    254.0.0.0          1.255.255.255
/7     130.0.0.0     131.255.255.255    254.0.0.0          1.255.255.255
/7     132.0.0.0     133.255.255.255    254.0.0.0          1.255.255.255
/7     134.0.0.0     135.255.255.255    254.0.0.0          1.255.255.255
/7     136.0.0.0     137.255.255.255    254.0.0.0          1.255.255.255
/7     138.0.0.0     139.255.255.255    254.0.0.0          1.255.255.255
/7     140.0.0.0     141.255.255.255    254.0.0.0          1.255.255.255
/7     142.0.0.0     143.255.255.255    254.0.0.0          1.255.255.255
/7     144.0.0.0     145.255.255.255    254.0.0.0          1.255.255.255
/7     146.0.0.0     147.255.255.255    254.0.0.0          1.255.255.255
/7     148.0.0.0     149.255.255.255    254.0.0.0          1.255.255.255
/7     150.0.0.0     151.255.255.255    254.0.0.0          1.255.255.255
/7     152.0.0.0     153.255.255.255    254.0.0.0          1.255.255.255
/7     154.0.0.0     155.255.255.255    254.0.0.0          1.255.255.255
/7     156.0.0.0     157.255.255.255    254.0.0.0          1.255.255.255
/7     158.0.0.0     159.255.255.255    254.0.0.0          1.255.255.255
/7     160.0.0.0     161.255.255.255    254.0.0.0          1.255.255.255
/7     162.0.0.0     163.255.255.255    254.0.0.0          1.255.255.255
/7     164.0.0.0     165.255.255.255    254.0.0.0          1.255.255.255
/7     166.0.0.0     167.255.255.255    254.0.0.0          1.255.255.255
/7     168.0.0.0     169.255.255.255    254.0.0.0          1.255.255.255
/7     170.0.0.0     171.255.255.255    254.0.0.0          1.255.255.255
/7     172.0.0.0     173.255.255.255    254.0.0.0          1.255.255.255
/7     174.0.0.0     175.255.255.255    254.0.0.0          1.255.255.255
/7     176.0.0.0     177.255.255.255    254.0.0.0          1.255.255.255
/7     178.0.0.0     179.255.255.255    254.0.0.0          1.255.255.255
/7     180.0.0.0     181.255.255.255    254.0.0.0          1.255.255.255
/7     182.0.0.0     183.255.255.255    254.0.0.0          1.255.255.255
/7     184.0.0.0     185.255.255.255    254.0.0.0          1.255.255.255
/7     186.0.0.0     187.255.255.255    254.0.0.0          1.255.255.255
/7     188.0.0.0     189.255.255.255    254.0.0.0          1.255.255.255
/7     190.0.0.0     191.255.255.255    254.0.0.0          1.255.255.255
/7     192.0.0.0     193.255.255.255    254.0.0.0          1.255.255.255
/7     194.0.0.0     195.255.255.255    254.0.0.0          1.255.255.255
/7     196.0.0.0     197.255.255.255    254.0.0.0          1.255.255.255
/7     198.0.0.0     199.255.255.255    254.0.0.0          1.255.255.255
/7     200.0.0.0     201.255.255.255    254.0.0.0          1.255.255.255
/7     202.0.0.0     203.255.255.255    254.0.0.0          1.255.255.255
/7     204.0.0.0     205.255.255.255    254.0.0.0          1.255.255.255
/7     206.0.0.0     207.255.255.255    254.0.0.0          1.255.255.255
/7     208.0.0.0     209.255.255.255    254.0.0.0          1.255.255.255
/7     210.0.0.0     211.255.255.255    254.0.0.0          1.255.255.255
/7     212.0.0.0     213.255.255.255    254.0.0.0          1.255.255.255
/7     214.0.0.0     215.255.255.255    254.0.0.0          1.255.255.255
/7     216.0.0.0     217.255.255.255    254.0.0.0          1.255.255.255
/7     218.0.0.0     219.255.255.255    254.0.0.0          1.255.255.255
/7     220.0.0.0     221.255.255.255    254.0.0.0          1.255.255.255
/7     222.0.0.0     223.255.255.255    254.0.0.0          1.255.255.255
/7     224.0.0.0     225.255.255.255    254.0.0.0          1.255.255.255
/7     226.0.0.0     227.255.255.255    254.0.0.0          1.255.255.255
/7     228.0.0.0     229.255.255.255    254.0.0.0          1.255.255.255
/7     230.0.0.0     231.255.255.255    254.0.0.0          1.255.255.255
/7     232.0.0.0     233.255.255.255    254.0.0.0          1.255.255.255
/7     234.0.0.0     235.255.255.255    254.0.0.0          1.255.255.255
/7     236.0.0.0     237.255.255.255    254.0.0.0          1.255.255.255
/7     238.0.0.0     239.255.255.255    254.0.0.0          1.255.255.255
/7     240.0.0.0     241.255.255.255    254.0.0.0          1.255.255.255
/7     242.0.0.0     243.255.255.255    254.0.0.0          1.255.255.255
/7     244.0.0.0     245.255.255.255    254.0.0.0          1.255.255.255
/7     246.0.0.0     247.255.255.255    254.0.0.0          1.255.255.255
/7     248.0.0.0     249.255.255.255    254.0.0.0          1.255.255.255
/7     250.0.0.0     251.255.255.255    254.0.0.0          1.255.255.255
/7     252.0.0.0     253.255.255.255    254.0.0.0          1.255.255.255
/7     254.0.0.0     255.255.255.255    254.0.0.0          1.255.255.255
/8     X.0.0.0       X.255.255.255      255.0.0.0          0.255.255.255
/9     X.0.0.0       X.127.255.255      255.128.0.0        0.127.255.255
/10    X.0.0.0       X.63.255.255       255.192.0.0        0.63.255.255
/11    X.0.0.0       X.31.255.255       255.224.0.0        0.31.255.255
/12    X.0.0.0       X.15.255.255       255.240.0.0        0.15.255.255
/13    X.0.0.0       X.7.255.255        255.248.0.0        0.7.255.255
/14    X.0.0.0       X.3.255.255        255.252.0.0        0.3.255.255
/15    X.0.0.0       X.1.255.255        255.254.0.0        0.1.255.255
/16    X.Y.0.0       X.Y.255.255        255.255.0.0        0.0.255.255
/17    X.Y.0.0       X.Y.127.255        255.255.128.0      0.0.127.255
/18    X.Y.0.0       X.Y.63.255         255.255.192.0      0.0.63.255
/19    X.Y.0.0       X.Y.31.255         255.255.224.0      0.0.31.255
/20    X.Y.0.0       X.Y.15.255         255.255.240.0      0.0.15.255
/21    X.Y.0.0       X.Y.7.255          255.255.248.0      0.0.7.255
/22    X.Y.0.0       X.Y.3.255          255.255.252.0      0.0.3.255
/23    X.Y.0.0       X.Y.1.255          255.255.254.0      0.0.1.255
/24    X.Y.Z.0       X.Y.Z.255          255.255.255.0      0.0.0.255
/25    X.Y.Z.0       X.Y.Z.127          255.255.255.128    0.0.0.127
/25    X.Y.Z.128     X.Y.Z.255          255.255.255.128    0.0.0.127
/26    X.Y.Z.0       X.Y.Z.63           255.255.255.192    0.0.0.63
/26    X.Y.Z.64      X.Y.Z.127          255.255.255.192    0.0.0.63
/26    X.Y.Z.128     X.Y.Z.191          255.255.255.192    0.0.0.63
/26    X.Y.Z.192     X.Y.Z.255          255.255.255.192    0.0.0.63
/27    X.Y.Z.0       X.Y.Z.31           255.255.255.224    0.0.0.31
/27    X.Y.Z.32      X.Y.Z.63           255.255.255.224    0.0.0.31
/27    X.Y.Z.64      X.Y.Z.95           255.255.255.224    0.0.0.31
/27    X.Y.Z.96      X.Y.Z.127          255.255.255.224    0.0.0.31
/27    X.Y.Z.128     X.Y.Z.159          255.255.255.224    0.0.0.31
/27    X.Y.Z.160     X.Y.Z.191          255.255.255.224    0.0.0.31
/27    X.Y.Z.192     X.Y.Z.223          255.255.255.224    0.0.0.31
/27    X.Y.Z.224     X.Y.Z.255          255.255.255.224    0.0.0.31
/28    X.Y.Z.0       X.Y.Z.15           255.255.255.240    0.0.0.15
/28    X.Y.Z.16      X.Y.Z.31           255.255.255.240    0.0.0.15
/28    X.Y.Z.32      X.Y.Z.47           255.255.255.240    0.0.0.15
/28    X.Y.Z.48      X.Y.Z.63           255.255.255.240    0.0.0.15
/28    X.Y.Z.64      X.Y.Z.79           255.255.255.240    0.0.0.15
/28    X.Y.Z.80      X.Y.Z.95           255.255.255.240    0.0.0.15
/28    X.Y.Z.96      X.Y.Z.111          255.255.255.240    0.0.0.15
/28    X.Y.Z.112     X.Y.Z.127          255.255.255.240    0.0.0.15
/28    X.Y.Z.128     X.Y.Z.143          255.255.255.240    0.0.0.15
/28    X.Y.Z.144     X.Y.Z.159          255.255.255.240    0.0.0.15
/28    X.Y.Z.160     X.Y.Z.175          255.255.255.240    0.0.0.15
/28    X.Y.Z.176     X.Y.Z.191          255.255.255.240    0.0.0.15
/28    X.Y.Z.192     X.Y.Z.207          255.255.255.240    0.0.0.15
/28    X.Y.Z.208     X.Y.Z.223          255.255.255.240    0.0.0.15
/28    X.Y.Z.224     X.Y.Z.239          255.255.255.240    0.0.0.15
/28    X.Y.Z.240     X.Y.Z.255          255.255.255.240    0.0.0.15
/29    X.Y.Z.0       X.Y.Z.7            255.255.255.248    0.0.0.7
/29    X.Y.Z.8       X.Y.Z.15           255.255.255.248    0.0.0.7
/29    X.Y.Z.16      X.Y.Z.23           255.255.255.248    0.0.0.7
/29    X.Y.Z.24      X.Y.Z.31           255.255.255.248    0.0.0.7
/29    X.Y.Z.32      X.Y.Z.39           255.255.255.248    0.0.0.7
/29    X.Y.Z.40      X.Y.Z.47           255.255.255.248    0.0.0.7
/29    X.Y.Z.48      X.Y.Z.55           255.255.255.248    0.0.0.7
/29    X.Y.Z.56      X.Y.Z.63           255.255.255.248    0.0.0.7
/29    X.Y.Z.64      X.Y.Z.71           255.255.255.248    0.0.0.7
/29    X.Y.Z.72      X.Y.Z.79           255.255.255.248    0.0.0.7
/29    X.Y.Z.80      X.Y.Z.87           255.255.255.248    0.0.0.7
/29    X.Y.Z.88      X.Y.Z.95           255.255.255.248    0.0.0.7
/29    X.Y.Z.96      X.Y.Z.103          255.255.255.248    0.0.0.7
/29    X.Y.Z.104     X.Y.Z.111          255.255.255.248    0.0.0.7
/29    X.Y.Z.112     X.Y.Z.119          255.255.255.248    0.0.0.7
/29    X.Y.Z.120     X.Y.Z.127          255.255.255.248    0.0.0.7
/29    X.Y.Z.128     X.Y.Z.135          255.255.255.248    0.0.0.7
/29    X.Y.Z.136     X.Y.Z.143          255.255.255.248    0.0.0.7
/29    X.Y.Z.144     X.Y.Z.151          255.255.255.248    0.0.0.7
/29    X.Y.Z.152     X.Y.Z.159          255.255.255.248    0.0.0.7
/29    X.Y.Z.160     X.Y.Z.167          255.255.255.248    0.0.0.7
/29    X.Y.Z.168     X.Y.Z.175          255.255.255.248    0.0.0.7
/29    X.Y.Z.176     X.Y.Z.183          255.255.255.248    0.0.0.7
/29    X.Y.Z.184     X.Y.Z.191          255.255.255.248    0.0.0.7
/29    X.Y.Z.192     X.Y.Z.199          255.255.255.248    0.0.0.7
/29    X.Y.Z.200     X.Y.Z.207          255.255.255.248    0.0.0.7
/29    X.Y.Z.208     X.Y.Z.215          255.255.255.248    0.0.0.7
/29    X.Y.Z.216     X.Y.Z.223          255.255.255.248    0.0.0.7
/29    X.Y.Z.224     X.Y.Z.231          255.255.255.248    0.0.0.7
/29    X.Y.Z.232     X.Y.Z.239          255.255.255.248    0.0.0.7
/29    X.Y.Z.240     X.Y.Z.247          255.255.255.248    0.0.0.7
/29    X.Y.Z.248     X.Y.Z.255          255.255.255.248    0.0.0.7
/30    X.Y.Z.0       X.Y.Z.3            255.255.255.252    0.0.0.3
/30    X.Y.Z.4       X.Y.Z.7            255.255.255.252    0.0.0.3
/30    X.Y.Z.8       X.Y.Z.11           255.255.255.252    0.0.0.3
/30    X.Y.Z.12      X.Y.Z.15           255.255.255.252    0.0.0.3
/30    X.Y.Z.16      X.Y.Z.19           255.255.255.252    0.0.0.3
/30    X.Y.Z.20      X.Y.Z.23           255.255.255.252    0.0.0.3
/30    X.Y.Z.24      X.Y.Z.27           255.255.255.252    0.0.0.3
/30    X.Y.Z.28      X.Y.Z.31           255.255.255.252    0.0.0.3
/30    X.Y.Z.32      X.Y.Z.35           255.255.255.252    0.0.0.3
/30    X.Y.Z.36      X.Y.Z.39           255.255.255.252    0.0.0.3
/30    X.Y.Z.40      X.Y.Z.43           255.255.255.252    0.0.0.3
/30    X.Y.Z.44      X.Y.Z.47           255.255.255.252    0.0.0.3
/30    X.Y.Z.48      X.Y.Z.51           255.255.255.252    0.0.0.3
/30    X.Y.Z.52      X.Y.Z.55           255.255.255.252    0.0.0.3
/30    X.Y.Z.56      X.Y.Z.59           255.255.255.252    0.0.0.3
/30    X.Y.Z.60      X.Y.Z.63           255.255.255.252    0.0.0.3
/30    X.Y.Z.64      X.Y.Z.67           255.255.255.252    0.0.0.3
/30    X.Y.Z.68      X.Y.Z.71           255.255.255.252    0.0.0.3
/30    X.Y.Z.72      X.Y.Z.75           255.255.255.252    0.0.0.3
/30    X.Y.Z.76      X.Y.Z.79           255.255.255.252    0.0.0.3
/30    X.Y.Z.80      X.Y.Z.83           255.255.255.252    0.0.0.3
/30    X.Y.Z.84      X.Y.Z.87           255.255.255.252    0.0.0.3
/30    X.Y.Z.88      X.Y.Z.91           255.255.255.252    0.0.0.3
/30    X.Y.Z.92      X.Y.Z.95           255.255.255.252    0.0.0.3
/30    X.Y.Z.96      X.Y.Z.99           255.255.255.252    0.0.0.3
/30    X.Y.Z.100     X.Y.Z.103          255.255.255.252    0.0.0.3
/30    X.Y.Z.104     X.Y.Z.107          255.255.255.252    0.0.0.3
/30    X.Y.Z.108     X.Y.Z.111          255.255.255.252    0.0.0.3
/30    X.Y.Z.112     X.Y.Z.115          255.255.255.252    0.0.0.3
/30    X.Y.Z.116     X.Y.Z.119          255.255.255.252    0.0.0.3
/30    X.Y.Z.120     X.Y.Z.123          255.255.255.252    0.0.0.3
/30    X.Y.Z.124     X.Y.Z.127          255.255.255.252    0.0.0.3
/30    X.Y.Z.128     X.Y.Z.131          255.255.255.252    0.0.0.3
/30    X.Y.Z.132     X.Y.Z.135          255.255.255.252    0.0.0.3
/30    X.Y.Z.136     X.Y.Z.139          255.255.255.252    0.0.0.3
/30    X.Y.Z.140     X.Y.Z.143          255.255.255.252    0.0.0.3
/30    X.Y.Z.144     X.Y.Z.147          255.255.255.252    0.0.0.3
/30    X.Y.Z.148     X.Y.Z.151          255.255.255.252    0.0.0.3
/30    X.Y.Z.152     X.Y.Z.155          255.255.255.252    0.0.0.3
/30    X.Y.Z.156     X.Y.Z.159          255.255.255.252    0.0.0.3
/30    X.Y.Z.160     X.Y.Z.163          255.255.255.252    0.0.0.3
/30    X.Y.Z.164     X.Y.Z.167          255.255.255.252    0.0.0.3
/30    X.Y.Z.168     X.Y.Z.171          255.255.255.252    0.0.0.3
/30    X.Y.Z.172     X.Y.Z.175          255.255.255.252    0.0.0.3
/30    X.Y.Z.176     X.Y.Z.179          255.255.255.252    0.0.0.3
/30    X.Y.Z.180     X.Y.Z.183          255.255.255.252    0.0.0.3
/30    X.Y.Z.184     X.Y.Z.187          255.255.255.252    0.0.0.3
/30    X.Y.Z.188     X.Y.Z.191          255.255.255.252    0.0.0.3
/30    X.Y.Z.192     X.Y.Z.195          255.255.255.252    0.0.0.3
/30    X.Y.Z.196     X.Y.Z.199          255.255.255.252    0.0.0.3
/30    X.Y.Z.200     X.Y.Z.203          255.255.255.252    0.0.0.3
/30    X.Y.Z.204     X.Y.Z.207          255.255.255.252    0.0.0.3
/30    X.Y.Z.208     X.Y.Z.211          255.255.255.252    0.0.0.3
/30    X.Y.Z.212     X.Y.Z.215          255.255.255.252    0.0.0.3
/30    X.Y.Z.216     X.Y.Z.219          255.255.255.252    0.0.0.3
/30    X.Y.Z.220     X.Y.Z.223          255.255.255.252    0.0.0.3
/30    X.Y.Z.224     X.Y.Z.227          255.255.255.252    0.0.0.3
/30    X.Y.Z.228     X.Y.Z.231          255.255.255.252    0.0.0.3
/30    X.Y.Z.232     X.Y.Z.235          255.255.255.252    0.0.0.3
/30    X.Y.Z.236     X.Y.Z.239          255.255.255.252    0.0.0.3
/30    X.Y.Z.240     X.Y.Z.243          255.255.255.252    0.0.0.3
/30    X.Y.Z.244     X.Y.Z.247          255.255.255.252    0.0.0.3
/30    X.Y.Z.248     X.Y.Z.251          255.255.255.252    0.0.0.3
/30    X.Y.Z.252     X.Y.Z.255          255.255.255.252    0.0.0.3

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CIDR blocks and number of Host IDs per segment:

  CIDR Block Number of Equivalent Class C networks Number of Network ID bits Number of Host ID bits Total number of Host addresses per segment

= (2 ^# of Host ID bits)

 Number of usable Host addresses per segment

= (2 ^# of Host ID bits)-2
    /27    1/8 Class C 27 5 32 30
/26 1/4 Class C 26 6 64 62
/25 1/2 Class C 25 7 128 126
/24 1 Class C 24 8 256 254
/23 2 Class C 23 9 512 510
/22 4 Class C 22 10 1,024 1,022
/21 8 Class C 21 11 2,048 2,046
/20 16 Class C 20 12 4,096 4,094
/19 32 Class C 19 13 8,192 8,190
/18 64 Class C 18 14 16,384 16,382
/17 128 Class C 17 15 32,768 32,766
/16 256 Class C = 1 Class B 16 16 65,536 65,534
/15 512 Class C = 2 Class B 15 17 131,072 131,070
/14 1024 Class C=4 Class B 14 18 262,144 262,142
/13 2048 Class C=8 Class B 13 19 524,288 524,286