About OUI Lookup Tool

The OUI lookup tool helps you identify vendors and their locations based on MAC addresses or OUIs. It also supports batch lookups of up to 10 addresses per request, providing a convenient way to analyze multiple devices simultaneously.

Input Format

Enter one MAC address or OUI per line, or separate them with commas (e.g. 00:11:22, 00:11:22:33:44:55). This tool supports various formats, including dashes (-), dots (.), colons (:), or a continuous string (001122334455).

Examples

• 00:11:22:33:44:55, 11-22-33
• 00-11-22-33-44-55, 11.22.33.44.55.66
• 0011.2233.4455, 112233, 22-33-44