MAC Address Lookup

Enter a MAC address to identify the manufacturer and get detailed information

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About MAC Address Lookup

MAC Address Lookup is a tool that helps you identify the manufacturer of a device based on its MAC address. Every network device has a unique MAC address, with the first 6 characters (OUI - Organizationally Unique Identifier) assigned to specific manufacturers.

This tool is useful for:

  • Network administrators trying to identify unknown devices on their network
  • Security professionals conducting network audits
  • Troubleshooting network connectivity issues
  • Identifying the manufacturer of networking equipment

Simply enter a MAC address in any common format (with or without separators) to get information about the device manufacturer.

Why Use MACVerify?

Comprehensive Database

Our MAC address database contains over 74,836 manufacturer entries from IEEE's official OUI listings. Updated daily to ensure accuracy.

Lightning Fast

Get instant results with our optimized lookup algorithm. Perfect for both single lookups and processing large batches of network devices.

Secure & Private

All lookups are performed securely and privately. We don't share your search data with third parties or require any personal information.

Developer Friendly

Our clean, intuitive interface works perfectly on all devices. Simple URL parameters make it easy to integrate with your own tools.

Frequently Asked Questions

What is a MAC address?

A Media Access Control (MAC) address is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment. MAC addresses are 48 bits (6 bytes) in length and are expressed as 12 hexadecimal digits, often separated by colons or hyphens.

Example: 00:1A:2B:3C:4D:5E or 00-1A-2B-3C-4D-5E

What is an OUI in MAC addresses?

OUI stands for Organizationally Unique Identifier. It's the first 24 bits (3 bytes) of a MAC address that identifies the manufacturer or vendor of a network interface. The IEEE Registration Authority assigns OUIs to ensure uniqueness.

For example, in the MAC address 00:1A:2B:3C:4D:5E, the OUI is 00:1A:2B.

How accurate is MAC address vendor lookup?

MAC address vendor lookups are highly accurate for identifying the manufacturer of network devices. Our database uses the official IEEE OUI registry, which is the authoritative source for MAC address assignments worldwide.

However, in some cases, companies may have been acquired or merged, so the current brand name might differ from the registered manufacturer name in the OUI database.

Why can't you find a vendor for my MAC address?

There are several reasons why a MAC address might not have a matching vendor:

  • The OUI may be very recently assigned and not yet in our database
  • The MAC address may be locally administered (custom assigned)
  • The MAC address may be spoofed or randomized for privacy
  • Virtual machines and containerized environments often use custom MAC addresses
  • Mobile devices may use MAC randomization to enhance privacy
How can I find my device's MAC address?

Finding your device's MAC address varies by operating system:

Windows: Open Command Prompt and type ipconfig /all, then look for "Physical Address"

macOS: Go to System Preferences > Network, select your connection, click "Advanced" and go to the "Hardware" tab

Linux: Open Terminal and type ifconfig or ip addr, then look for "ether" or "link/ether"

iOS: Go to Settings > General > About > Wi-Fi Address

Android: Go to Settings > About Phone > Status > Wi-Fi MAC Address