Mac address lookup

Samy Massoud
2 min readNov 21, 2020

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Network card (Mac Address Lookup)

To start we must understand first what is Mac Address?

As per Wikipedia A media access control address (MAC address) is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment. This use is common in most IEEE 802 networking technologies, including Ethernet, Wi-Fi, and Bluetooth. Within the Open Systems Interconnection (OSI) network model, MAC addresses are used in the medium access control protocol sublayer of the data link layer. As typically represented, MAC addresses are recognizable as six groups of two hexadecimal digits, separated by hyphens, colons, or without a separator.

So in every device you are using today there will be at least one Mac address, for example the mobile device will have Wifi and Bluetooth Mac addresses.

And to organize and regulate Mac Address registration the IEEE organization created the public registration authority, in which you can register your company if you are going to manufacture any network related products such as NIC, IP Phones,IP cameras, …. etc.

The IEEE authority has three different standards for Mac Address
- The Mac Address Block Large (MA-L)

An MA-L assignment includes an OUI (Organization Unique Identifier) and large blocks of EUI-48 and EUI-64 values which can be used as MAC Addresses, Bluetooth Device Addresses, Ethernet Addresses or object identifiers.

- The Mac Address Block Medium (MA-M)

An MA-M assignment includes medium blocks of EUI-48 and EUI-64 values which can be used as MAC Addresses, Bluetooth Device Addresses, Ethernet Addresses or object identifiers.

- The Mac address block small (MA-S)

An MA-S assignment includes an OUI-36 and small blocks of EUI-48 and EUI-64 values which can be used as MAC Addresses, Bluetooth Device Addresses, Ethernet Addresses or object identifiers.

In order to lookup any Mac address to get information about the company/vendor you have to go through all the three files or pick an easier way which is a tool that collects and format information in a better way for easy lookup, the tool we have to show in this article is from the Online Tools Website DevTools360 which is Mac Address Lookup tool, the tool is handy and provides many useful information about the Mac Address such as company information and location, the Mac address boundaries and block size, …

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Samy Massoud
Samy Massoud

Written by Samy Massoud

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I’m a Passionate Software Developer, I write code for living and for fun as well, I’ve built a lot of services and websites in many different fields.

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