MAC Address Lookup
Look up any MAC address to identify the device manufacturer from the OUI (Organizationally Unique Identifier). Supports all common formats.
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How to Use the MAC Address Lookup Tool
- Enter a MAC address in any common format (colon, hyphen, dot, or no separator).
- Click Lookup to identify the manufacturer.
- View format variations and address properties.
What is a MAC Address?
A MAC (Media Access Control) address is a unique 48-bit hardware identifier assigned to network interfaces. The first 3 bytes (24 bits) form the OUI, which identifies the manufacturer. This tool contains a database of 21+ manufacturers covering the most common networking device vendors.
Features
- OUI-based manufacturer identification
- Multiple format display (colon, hyphen, dot, raw)
- Multicast and locally administered bit detection
- 50+ manufacturer entries in built-in database
- 100% client-side processing for full privacy
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Disclaimer: This tool is provided as-is for informational and educational purposes only.