IP Address Classes

Hi,

I am New to Networking. Could you plz explain how to identify the number of host in the classes and what x,y,z values/ranges in the below mentioned table

Class Range 1sthost id LastHID BroadCast

A 1-126 X.0.0.1 x.255.255.254 X.255.255.255
B 128-191 x.y.0.1 x.y.255.254 X.y.255.255
C 192-223 x.y.z.1 x.y.z.254 X.y.Z.255

And how broadcast Id work in the Network/Lan.

Thanks,

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Hi Alans,

Thanks for your reply.