Download MAC Vendor Database
Full IEEE OUI database in CSV, JSON and XML — free download, always the latest data.
33,278
Total Vendors
57,117
Total MAC Prefixes
22 Mar 2026
Last Updated
CSV Format
Comma-separated values
Best for Excel, Google Sheets, databases and scripting. One row per vendor.
Download CSV
JSON Format
Compact JSON array
Ideal for web apps, APIs and programmatic access. No extra whitespace.
Download JSON
XML Format
Structured XML
Compatible with enterprise tools, XSLT pipelines and legacy system integrations.
Download XML
Column Schema
Same across CSV, JSON and XML
| Column | Type | Example | Description |
|---|---|---|---|
mac_prefix |
String | 28:6F:B9 | Colon-separated uppercase hex prefix (24–48 bit) |
vendor_name |
String | Nokia Shanghai Bell Co., Ltd. | IEEE-registered organization name |
block_type |
Enum | MA-L MA-M MA-S CID IAB | IEEE assignment block type |
company_address |
String | Shanghai CN 201206 | Registered company address from IEEE |
Data sourced from the
IEEE Standards OUI Registry.
Includes MA-L, MA-M, MA-S, CID and IAB assignments.
Files are regenerated each time the Python download script is run.