What are the different classes of IP address? What is the range of classes A, B, C, D, E?
I am explaining the use and range of each IP class in detail with examples.
Internet Protocol (IP) is a network layer, host-to-host delivery protocol. It means it delivers a packet from one host to the other with no knowledge about the ports within the host.
It is a connection-less protocol that makes it unreliable. Hence, it is often clubbed with TCP. TCP is a reliable protocol from the transport layer.
There are two versions of the IP address. These are IPv4 and IPv6.
In this article, we discuss IPv4 address space and its different classes of IP addresses.
Table of Contents
An IP address uniquely identifies each host and router. This IP address is 32 bits long.
One of the usual IP addresses that we see.
For example, 18.104.22.168.
This address is a 32-bit address represented within the system in binary form:
An IP address format is usually divided into two parts:
Two hosts in the same network have the same network ID part but different host ID part.
You can also write a Python program to validate the IP address.
On the basis of this division, IP addresses are classified into various classes.
Following are the different classes of IP address:
We can use IP address classes A, B, and C for subnetting and supernetting in a computer network.
You can use a simple online tool to find out the class of any IP address.
Summarizing different classes of IP address with its range and applications:
|Class||IP Address Range (Theoretical)||Start-Bits||Application / Used for|
|A||0.0.0.0 to 127.255.255.255||0||Very large networks|
|B||22.214.171.124 to 126.96.36.199||10||Medium networks|
|C||192.0.0.0 to 188.8.131.52||110||Small networks|
|D||184.108.40.206 to 220.127.116.11||1110||Multicast|
|E||240.0.0.0 to 247.255.255.255||1111||Experimental|
The IP address ranges for a different class in the table are theoretically calculated. There are some special IP addresses that are reserved for a special purpose.
IP addresses having all zero’s or one’s either in the network id or host id are ruled out from all the IP address classes. These IP addresses are used for a special purpose.
A related article that you may like to read: How does Computer Network Work?