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Identify device vendor from a MAC address.
Vendor
Raspberry Pi Foundation
OUI: B8:27:EB
Administration
Universally administered
Transmission
Unicast
Find the manufacturer of a device from its MAC address (OUI). Useful for identifying unknown devices on your network, debugging Wi-Fi clients, and security audits. Uses a bundled offline OUI database — no API calls.
Quickly identify the manufacturer of any network device using its MAC address or OUI. It relies on a bundled offline database without making external API calls, ensuring fast results and reliable lookups.
Good to know: This tool is designed strictly for manufacturer identification via OUI and does not perform active network scanning or IP tracking.
Quickly identify the manufacturer of any network device by searching its unique MAC address or OUI prefix.
Locate the device MAC address
Find the 12-character hardware address on your device sticker or within your router's DHCP client list.
Enter the address into the tool
Type or paste the full MAC address or the first six characters (OUI) into the search input field.
Initiate the vendor lookup
Click the lookup button to query the bundled offline OUI database for an immediate match.
Review the manufacturer details
View the identified vendor name and organization details associated with the specific hardware prefix.
Estimated time: PT1M
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