What Is My Subnet Mask? Explained and How to Find?

If you are working in an organization wherein the usage of the internet is rapid then, you might come across some issues. Most often, people confront numerous troubleshooting problems at the time of using a computer in your office or at your home. The internet that you often utilize through your system might raise problems in some rare situations. In a bid to ease the communication between different devices, the Internet Protocol operates as an underlying body utilized by different types of networks. As we all know that each and every device has a specific IP address. The Internet Protocol address varies from one device to the other. For instance, every residence has a street address.

Similarly, each device has an IP address which belongs to a network. Apart from the IP address, each device has a subnet mask. It determines the part of the IP address that belongs to the network. A subnet is actually a short form for the subnetwork which is considered as a smaller network. It rests within a massive network. The fundamental purpose of the subnet is to direct the communication between different devices on a data network via the Mac address of the device. In this post, we have included the complete information about My Subnet Mask for a device. Here is all you need to know about the Subnet Mask Address and a lot more. Check it out!

What is a Subnet?

A subnet is a sub-network that handles the flow of the network traffic between the host devices. It will then eventually segregate the traffic of the network depending on the configuration of the network. The process of subnetting enhances the security as well as the performance of the network you have been using for your computer. In fact, the subnet is a logical subdivision of an IP network. The method of dividing a network into 2 or more networks is referred to as subnetting. Each device’s IP address comprises of two different components. One is the host address and the other is a network address. The major functionality of a subnet mask is to separate the IP address from the available network and the host addresses. Later, Subnetting segregates the host section of an IP address into the subnet and the host address. This particular process takes place only when an additional subnet is required. By making use of the Subnet Calculator, one could easily obtain the complete information about the subnetwork from IP address and the Subnet mask. It is actually referred to as the subnet mask. The usage of a subnet mask is to find out the network address of an IP address. It can be determined easily by executing a bitwise AND operation on the subnet mask.

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What is My Subnet Mask?

A Subnet Mask is nothing but concealing the host bits that ultimately leaves behind the network ID visible. A Subnet mask allows the users to determine the size of a specific subnet. The subnet mask comprises of bits that range between 0 and 8 that belongs to DSL and T1 IP blocks. The most identifying feature of subnetting is the subnet mask. Similar to the IP addresses, a subnet mask comprises a total of 4 bytes i.e., 32 bits. In a dotted decimal notation, people write the subnet mask address. The traditional way of representing the subnet mask in binary format is given below:

  • 11111111 11111111 11111111 00000000

In a readable format, people write it as follows:


The aforementioned Subnet Mask address is a default subnet mask for most of the computers and the network routers.

How to Find My Subnet Mask?

There is a specific methodology to determine the Subnet Mask of a device or the network. There is a possibility of converting a subnet mask into the binary form comprising of 0s and 1s. All the zeroes are positioned on the right-hand side while the 1s are positioned on the left side.

There is a simple technique to determine the subnet mask of your device through simple commands. If you are operating your device through Windows operating system, the easiest way to find ‘My Subnet Mask’ is to run few commands. Follow the easy steps provided below to find My Subnet Mask:

  • First of all, press and hold the Windows key and R on your device.
  • You need to type ‘cmd’ and hit the enter button.
  • The Command Prompt window appears on the screen.
  • On the Command Prompt window, you need to type the IP Config Command.
  • Once you hit the enter button, you can view the subnet mask which is quite simple.

what is my subnet mask

That’s all! This is the simple procedure to find or determine My Subnet Mask of your own device. We have provided in-depth information about a subnet, IP address and the Subnet Mask address through this post. Hope this tutorial guided you in the best way to find out the purpose of Subnet Mask.


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