Value of first octet = 1-127 Class A
128-191 Class B
192-223 Class C
Also there are class D and E addresses, which can't be assigned to hosts.
Class B, if you are referring to classful addressing schemes.
The IP address is of class C.
If the first byte is in the range 192-223, that's a class C address.
The first octet determines the class, so-0-127 is Class 1128-191 is Class 2192-223 is Class 3So the IP address 203.12.176.55 is a Class 3 address.
192.168.0.254 is a valid "class C" IP address.
There are five IP classes that IP addresses are divided into. The IP address 185 is a class B address. Class B IP addresses have the first three numbers of 128 to 191.
The offset for a Class C IP address is 24 bits.
That is normally the IP address of a router
The First Octet is used to derive the Class of an IP address...... Eg: 192.168.1.1------ The IP class for this IP add is CLASS "C" as the first Octet is 192.
Class a
Class C address
rip version 1 is classfull routing protocol. in classfull routing protocol is not able to carry its subnet mask whatever the ip belong from a class. it wil take its by default subnet mask.if the ip address belong to class b and the subnet mask is published as /28. in classless routing protocol this ip address would be displayed as /16 not like /28