In classless addressing, we know the first address and the number of addresses in the block. Can we find the prefix length? If the answer is yes, show the process.

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In classless addressing, we know the first address and the number of addresses in the block. Can we find the prefix length? If the answer is yes, show the process.

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 Yes, we can find the prefix length based on the first address and the number of addresses in the block.

For example, let you have  the address 192.168.0.1 and you know there is 32 addresses in the block. You would determine how bits are required to have that many addresses in the block. 2^5 = 32 therefore 27 bits are required for the prefix. 192.168.0.1 /27

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