When MAC addresses were introduced in 1979, those engineers were forward-thinking and made an essentially future-proof system. There are 281 trillion MAC addresses, so even at 10% of use, each person would get 4,000 devices. Note that we said one of that is because big companies like Apple would go through all of their possibilities fairly quickly.įor those curious, it is improbable we will ever run out of MAC addresses. For example, one of Apple’s identifiers is D49A20. The manufacturers assign these addresses, so there is no way to change them.Įach manufacturer of network connection cards gets there own identifier. If devices didn’t have MAC addresses, your router would have no way of telling what device requested data from the Internet. Every device with Wi-Fi access has a MAC address, which tells your router to send the data it requests to that device. Instead, MAC is an acronym for Media Access Control. What is a MAC Address?ĭespite the name, your computer’s MAC address does not have anything to do with Apple. Before we dive into the steps to discover your MAC address, let’s go over the basics first. Your MAC address will be the same wherever your computer is. In this article, we will show you how to find out the MAC address for your Windows computer. If you are not setting up a new router, a MAC address is a nice thing to know for troubleshooting purposes, especially related to networking issues. Maybe you are setting up a new router and want only to allow devices you recognize. The link/ether field associated with your ethernet interface is your MAC address.There are a couple of reasons to find out your MAC address. The "Ethernet Address" field for the ethernet hardware port is your MAC address. Type " networksetup -listallhardwareports". Click on the Advanced button on the right, and then the Hardware tab.Make sure that the ethernet interfaces is selected on the left side.Go to the Apple menu > System Preferences > Network (under "Internet and Wireless").Make sure you're looking at your ethernet interface and not your wireless interface. The Physical Address value for your ethernet card is your MAC address. When the command window appears, type ipconfig /all. For PCs running Windows 8 and later, launch the "Command" program by searching for it in your applications list.
Finding the Ethernet MAC Address Microsoft Windowsįor PCs running Windows 7 and earlier, Go to Start Menu > Programs > Accessories > DOS Command Prompt. Both wired and wireless network interfaces have these addresses.
It is a 12 digit hexadecimal number usually delimted by colons, e.g. Berkeley Statistics Annual Research Symposium (BSTARS)Įvery computer's network interface has a unique identifer called a MAC address.Artificial Intelligence/Machine Learning.
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