oui

September 17, 2025 · View on GitHub

CLI to look up MAC addresses for their vendor in the IEEE OUI database

Note: This module is CLI-only since v13. The data has moved to module oui-data.

Usage

$ npm i -g oui
$ oui 20:37:06:12:34:56
Cisco Systems, Inc
80 West Tasman Drive
San Jose CA 94568
United States