MAC Address Lookup

Cisco Systems, Inc
80 West Tasman Drive
San Jose CA 94568
United States

Tool guide

Look up vendors from MAC prefixes

Match a MAC prefix against the OUI vendor data bundled with the tool.

How to use

  1. Enter a colon- or hyphen-separated MAC address.
  2. Review and optionally copy the matched vendor details.

Example and expected result

Input format: 00:1A:2B:00:00:01
The first three groups identify the lookup prefix; results depend on the bundled database.

Capabilities and limits

  • This does not identify a device’s location or owner.
  • Randomized, locally administered or newly assigned prefixes may have no match.

Troubleshooting

Check hexadecimal characters and separators for invalid input. No match does not prove a device fault.

Data processing and storage

Vendor data loads as a tool resource; input is matched in the browser, without submitting the MAC to a vendor API.

Read the full data-processing notice