🏷️ MAC Address & OUI Vendor Lookup

Identify hardware device manufacturers (Apple, Cisco, Intel, Samsung, Raspberry Pi) from any MAC address or IEEE OUI vendor prefix. 100% free.

Free No Signup Required Browser-Based

How to Use MAC Address & OUI Vendor Lookup

  1. Enter the full MAC address or first 6 characters
  2. Click Lookup OUI
  3. View the registered vendor company name, corporate address, and country of origin

📖 Technical Encyclopedia & Standards Reference

Identify hardware device manufacturers (Apple, Cisco, Intel, Samsung, Raspberry Pi) from any MAC address or IEEE OUI vendor prefix. 100% free. This tool computes outputs according to official open technical and scientific specifications.

✓ Open Standards AlignmentCompliant with ISO/IEC, W3C, NIST, and standard mathematical formulations.
✓ 100% Client-Side / SecureZero server logging. Computations execute entirely in your local browser sandbox.
Explore more formulas in our Tools Encyclopedia & Glossary →

Frequently Asked Questions

What is an OUI in a MAC address?
An Organizationally Unique Identifier (OUI) is the first 24 bits (3 octets) of a MAC address assigned by the IEEE to uniquely identify the hardware manufacturer.
What MAC address formats are supported?
You can enter MAC addresses with colons (00:1A:11), dashes (00-1A-11), dots (001A.11), or continuous hexadecimal strings.
By OnlineToolHubs Team • September 2026