Tra cứu nhà sản xuất MAC
Tìm nhà sản xuất bằng tiền tố OUI địa chỉ MAC. Cơ sở dữ liệu IEEE OUI.
About MAC Address Vendor Lookup
Look up the manufacturer (vendor) of a network device by its MAC address. Uses the IEEE OUI (Organizationally Unique Identifier) database to identify the hardware manufacturer.
How to Use
Enter a MAC address in any common format (e.g., 00:1A:2B:3C:4D:5E, 00-1A-2B-3C-4D-5E, or 001A2B3C4D5E). The tool will look up the OUI prefix and display the manufacturer name and country.
MAC Address Formats
MAC addresses can be entered with colons (:), hyphens (-), or no separators. Only the first 6 characters (OUI prefix) are used for the vendor lookup.
▶What is an OUI?
OUI (Organizationally Unique Identifier) is the first 24 bits of a MAC address assigned by IEEE to identify the manufacturer of a network device.
▶Why can't my MAC address be found?
The MAC address may be from a newer device not yet in the database, or the OUI prefix may not be registered. Some manufacturers also use private or randomized MAC addresses.
▶Is the data up to date?
The database is based on the IEEE OUI registry. It is updated periodically but may not include the very latest assignments.