N/APosted on - 10/19/2011
There are five classes of IP addresses namely A, B, C, D and E. How can we find which IP address belongs to a such particular class. How many hosts are possible in each class?
Classes and Hosting of IP addresses.
An IP address class is determined based on the decimal values of their first octets. An IP address can start with a decimal value between 1 and 255.
Below is the list of the 5 different classes of IP address;
Class A: 126.96.36.199 to 127.255.255.255.255
Class B: 188.8.131.52 to 184.108.40.206
Class C: 192.0.0.0 to 220.127.116.11
Class D: 18.104.22.168 to 22.214.171.124
Class E: 240.0.0.0 to 255.255.255.255
Remember that you can determine which IP address belongs to a particular class by looking on the first octet of the IP address.
Class A, B, and C are used to identify workstations, routers, switches, and other devices. Class D and E are reserved IP addresses for special use.
Below is the list of the number of hosts that supports in every class:
Class A IP address class consists of 16, 277, 214 number of host IDs per network ID.
Class B IP address class consists of 65, 534 number of host IDs per network ID.
Class C IP address class consists of 254 number of host IDs per network ID.
Class D IP addresses are reserved for multi cast groups.
Class E IP addresses are reserved for future use, or Research and Development Purposes.
I hope this will answer your questions.