MAC Address Lookup

Find the vendor name of a device by entering an OUI or a MAC address

MAC Vendor CSV database

Get access to our updated and comprehensive MAC address database for free. Available for download in JSON, CSV and Cisco "vendorMacs.xml" format from the following links: JSON, CSV, or Cisco "vendorMacs.xml" format.

Each file has over 51K unique MAC prefixes.

MAC Vendor Database CSV

Unique MAC address: 51792
Updated: 3 June 2024

Download CSV database (~ 2.3MB)

Format


Mac Prefix,Vendor Name,Private,Block Type,Last Updated
...
00:00:00,XEROX CORPORATION,false,MA-L,2015/11/17
...

Attributes

Column Name	Description
Mac Prefix	MAC address prefix
Vendor Name	Vendor/Company Name
Private	If true: Company name & address will not be displayed on public listing
Block Type	MAC address block: MA-L: MAC Address Block Large (previously named OUI). Number of address 2^24 (~16 Million) MA-M: MAC Address Block Medium. Number of address 2^20 (~1 Million) MA-S: MAC Address Block Small (previously named OUI-36, encompasses IAB Assignments). Number of address 2^12 (4096) CID: Company Identifier. This prefix will not be used for globally unique applications. Number of address 2^24 (~16 Million)
Last Update	When MAC information was last updated. Format (YYYY-MM-DD)