Find the Subnet Mask of your Comptuer And Mac

Networks are broken down up into sub networks to let for faster data transfer, and easier management. Routers accomplish this by assigning subnet masks, a number that indicates where to look in the IP address to conclude the sub network. Discovery of the subnet mask on a computer is a simple task. Other devices present more of a test. If one prompts you to enter the subnet mask, you can frequently use the same one as your computer.Find the Subnet Mask  in a easy way.


A subnet mask will “mask” out the host bits, leaving only the Network ID visible.

It also helps define the size of a picky subnet. The majority subnet mask with a bit range of 0 to 8 belongs to DSL and T1 IP blocks while the private networks have bit range in the 8 to 24 IP blocks.


Step 1 – Unlock Command Prompt. Click the Windows key and R at the same time to open the Command Prompt window.

  • If this doesn’t work, click the Start button or Windows logo in the lower left corner of the screen. Type “command prompt” in the search bar and double-click the symbol that appears. You may need to press Search first to way in the search bar.
  • If no icon in the lower left, move your mouse to the minor right and swipe upward, or swipe from the right on a touch screen.


Step 2 – Enter the ipconfig command. Type the words ipconfig /all precisely as they appear, with a space in among them. Hit the  Enter key. Windows ipconfig is the program that keeps track of all of your network connections. This power will bring up a list with all of your network information.

Step 3 – Come across the subnet mask. This is situated in the section titled “Ethernet adapter Local Area Connection.” Find the line commencement “Subnet Mask” and look across to find your subnet mask. Most subnet mask numbers start on with a string of 255s, such as

Step 4 – Come across through the Control Panel instead.
 Here’s one more method to find this information:

  • Find the way to Control Panel → Network & Internet → Network and Sharing Center.
  • On the majority modern Windows systems, click “Change adapter settings” on the left. On Windows Vista, click “Manage Network Connections” instead.
  • Right-click “Local Area Connection” and select “Status.” Click “Details” in the window that opens. Look for your subnet mask.


Step 1

– PRESS the “System Preferences” icon on your dock. If that symbol is not on your dock, click on the Apple logo on the top left of the screen and select “System Preferences.”


Step 2 – Than Click the “Network” icon. On the “System Preferences” window, the Network icon appears like a grey ball on most versions of Mac OS X. If you can’t find it, type Network in the search bar on the upper right of the System Preferences window.

Step 3 – pick your Internet connection from the list on the left.
 Click the name with a green dot after that, and the word “Connected” underneath it.

Step 4 – Click “Advanced” if using WiFi. This is positioned in the lower right. On most other types of network connections, you can by now see the Subnet Mask labeled on the right side of your display.

Step 5 – Select the TCP/IP tab in the “Advanced” window.
 Mac TCP/IP specifies the contact method for accessing the network.

Step 6 – Find your subnet mask. This should be obviously labeled “Subnet Mask,” and begin with a 255.

  • If the merely numbers you see are on the lower half of the screen, underneath “Configure IPv6,” you are on a local IPv6-only network, which does not use subnet masks. If you should be linked online, try selecting “Using DHCP” from the “Configure IPv4” drop-down menu, then pressing Renew DHCP Lease.


You should see the Subnet Mask value on the screen. If not than feel free to ask us.

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