MAC vendors
database download

Get the most complete and up-to-date database
of MAC address blocks and their vendors.

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Available formats

MAC address vendors database in JSON format

Permanent URL

https://macaddress.io/database/macaddress.io-db.json

Output sample

{
    "oui":"2C:3A:E8",
    "isPrivate":false,
    "companyName":"Espressif Inc",
    "companyAddress":"Room 204, Building 2, 690 Bibo Rd, Shanghai  201203 CN",
    "countryCode":"CN",
    "assignmentBlockSize":"MA-L",
    "dateCreated":"2018-08-14",
    "dateUpdated":"2018-08-14"
}

Field descriptions

oui Organization Unique Identifier
isPrivate For an extra fee to IEEE, vendors can hide their details. In this case, this flag is set to 'true' and companyName, companyAddress and countryCode are 'private'.
companyName Name of the company which registered the MAC addresses block.
companyAddress Company's full address.
countryCode Company's country code in ISO 3166 format.
assignmentBlockSize Assignment block size, one of the following:
  • 'MA-L' for MAC Address Block Large
  • 'MA-M' for MAC Address Block Medium
  • 'MA-S' for MAC Address Block Small
  • 'IAB' for Individual Address Block
dateCreated Date when the range was allocated, in YYYY-MM-DD format. Is available for ranges registered after 27 June, 2018.
dateUpdated Date when the range was last updated, in YYYY-MM-DD format. Is available for ranges registered after 27 June, 2018.

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