MAC Vendor JSON 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 50K unique MAC prefixes.

MAC Vendor Database JSON

Unique MAC address: 50992
Updated: 23 February 2024


        "macPrefix": "00:00:00",
        "vendorName": "XEROX CORPORATION",
        "private": false,
        "blockType": "MA-L",
        "lastUpdate": "2015/11/17"


Attribute Description
macPrefix MAC address prefix
vendorName Vendor/Company Name
private If true: Company name & address will not be displayed on public listing

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)
lastUpdate When MAC information was last updated. Format (YYYY-MM-DD)