MAC Lookup - Find MAC Address / OUI / Vendor Details
MAC (Address) Lookup is a powerful tool that enables users to identify the manufacturer or vendor of a network device by analyzing its MAC. You can also do a MAC Vendor lookup or OUI (Organizational Unique Identifier) lookup with this tool
The MAC lookup tool is extremely simple to use. Its intuitive UI and minimalist approach lends itself to ease of use..
How to Do a MAC Address / Vendor / OUI Lookup With Our Tool?
Follow the given steps to find the OUI and other relevant details from a MAC address.
- Access the MAC Address Lookup tool.
- Input the MAC Address (like 40-A8-F0-4F-50-9E) or OUI (like, 40-A8-F0) into the designated field to check its mac address details or vendor / OUI details. Make sure that each MAC address is on a new line (max 10 entries at once).
- Click the search button to get your results.
You will see a detailed output sheet. This is the information provided by it.
An Explanation of the Results
After doing an OUI lookup, you will see the following information.
- Address Prefix. This is the OUI number
- Vendor/Company. This is the name of the company that issued the NIC.
- Start address. This shows the beginning of the range of serial numbers that the vendor can issue.
- End address. This shows the end of the range of serial numbers that the vendor can issue.
- Company address. This shows the real address of the vendor that issued the NIC.
Below these results will be another menu that provides extra details. They are categorized into three sections, namely: Vendor Details, Block Details, and MAC history. Here is what each section shows.
Vendor Details
- Address Prefix. This is the first three octets (Or six characters) of the MAC address. This is specific for each company.
- Vendor/Company. This shows the name of the company to whom the address prefix is assigned.
- Company Address. The address of the company.
- Is Private? Shows whether the address prefix is private or public
- Country Code. Shows the country code to which the company belongs.
Block Details
A MAC address block is the specific range of addresses that are assigned to a manufacturer. This part of the results shows the block details.
- Is Registered? Shows whether the block is registered or not.
- Start Address. Show the starting address of the block.
- Assignment Block Size. Shows classification of the block size. MA-L is a large block reserved for enterprises.
- Date Created. Shows the date on which the block was registered
- Block Size. This shows the total number of MAC addresses available in that block. MA-L means that 16,777,216 addresses are available.
- End Address. Shows the last address on the block.
- Date Updated. Shows the date on which the block’s registration was changed or updated.
MAC History
The MAC history shows the visual timeline of when the MAC address block was registered and updated.
The changes are clearly labeled. For example, if the company address changes, the new address will be given. If the vendor name changes, it will be mentioned.
Due to the focus on vendor information, a MAC address lookup is also known as a MAC vendor lookup or MAC address vendor lookup.
How Does Our MAC Vendor Lookup Work?
Our MAC Vendor Lookup tool utilizes a vast public database (courtesy of the IEEE) to retrieve information about a MAC address, including the original manufacturer, prefix, postfix, and country of origin.
The vendor number (OUI) in a MAC address is assigned by the IEEE. The IEEE maintains a public database that lists the details of all the MAC address blocks they have sold/leased to companies.
Our MAC Vendor lookup tool accesses this database and finds the MAC address block, which contains the inputted MAC address. Then, it pulls the relevant details from the database and outputs them to the user in a clear and straightforward format.
When you are doing a “Search by Vendor,” the tool simply checks the name of the company you inputted and pulls the address blocks associated with that MAC vendor.
What is a MAC Address?
MAC stands for Media Access Layer. A MAC address is a unique identifier for network interface cards (NICs) in a device. The most common NICs are for WiFi routers, Ethernet, and Bluetooth devices.
MAC address consists of 12 hexadecimal characters. It is used for secure network communication.
As you know, devices on the internet have a public IP address. However, one access point with one public IP can have multiple devices connected to it. MAC addresses are used to identify the specific device behind a public IP that needs to be communicated with.
What is OUI in a MAC Address?
The first six characters in the MAC address are called OUI or organizationally unique identifiers. They identify the organization that created the NIC. The last six digits are specific to the NIC itself and act as its serial number.
What is the Vendor Number in a MAC Address?
The vendor number is just another name for the OUI number. The IEEE assigns specific ranges of vendor numbers to each company. To use the OUI numbers a company needs to purchase them from IEEE. It is possible for a company to be assigned multiple OUIs if they purchase more blocks from IEEE.
What are the Features of our MAC Address Lookup Tool?
Our OUI lookup tool is chock full of useful features that enhance its usability and function. All of the features are listed below.
- Detailed results. Users see a detailed output.
- Multiple MAC Address Lookup. It is possible to look up multiple MAC addresses simultaneously.
- Copy Results Quickly. Users can use the copy shortcut button to quickly save their results in a different file.
- Download Results Instantly. The download button lets you save the file on your device in either JSON or CSV format. This is great for programmers and system admins who need to feed the results into some software.
- Multiple Language Support. Users can view their results in three different languages: English, Dutch, and Russian.
- Free to Use. The MAC address lookup tool is completely free to use. It does not have any requirements to register and pay before use.
Frequently Asked Questions (FAQs)
What information can I get using the MAC lookup tool?
A MAC address lookup can provide details about the manufacturer or vendor of a MAC address. This comprises information such as the company name, address, etc.
Is our tool for looking up MAC addresses free to use?
You can access it for free whenever you need to look up a MAC address. There’s no need for a premium subscription to use any of the features.
Is it legal to use a MAC address finder?
Yes, using a MAC address finder is legal. It can be used for network troubleshooting, inventory management, network security, and other practical applications.
Can I identify the device by MAC address online?
You can look up MAC addresses for devices on any network as long as you can access the device's MAC address and our MAC address finder.
Can the MAC address be represented in binary format?
Typically, MAC addresses are represented in binary format. A MAC address has 48 bits (6 bytes) and is typically expressed as six pairs of hexadecimal integers separated by colons or hyphens. Each hexadecimal digit corresponds to 4 bits, giving a MAC address of 12 hexadecimal characters.
A MAC address such as "00:1A:2B:3C:4D:5E" can be represented in binary as follows: 00000000:00011010:00101011:00111100:01001101:01011110
Each pair of hexadecimal numerals corresponds to an 8-bit binary value in this representation. The binary format is beneficial for low-level network operations and calculations involving MAC addresses.