MAC アドレスベンダー検索
MAC アドレスの OUI プレフィックスからメーカーを検索。IEEE OUI データベース使用。
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.