MAC Address Lookup: Find Any Vendor Instantly 2026

Ever wondered who made the network card inside your device or which company owns a particular MAC address? After years of hands-on network diagnostics and security work, I can tell you the answer is almost always one lookup away. A MAC address Lookup carries more identity information than most people realize, and having the right tool to decode it changes how you approach everything from troubleshooting to access control.

This guide walks you through everything from understanding what a MAC address actually is, to finding it on any device, to using a lookup tool the right way. Whether you’re a network administrator, a security professional, or just someone trying to make sense of a device on your network, this is the resource you need.

About MAC Lookup

Think of our MAC lookup tool as a translator between raw hardware identity and human-readable vendor information. Behind the scenes, it taps into a vast database of MAC addresses paired with vendor names so when you drop in a MAC address or OUI number, it immediately surfaces the associated manufacturer. Flip it around, and entering a vendor name pulls every registered address prefix tied to that company. The identifier game works both ways, and that’s what makes this tool genuinely powerful for anyone dealing with networked devices daily.

MAC Address Vendor Lookup

When you retrieve results through a MAC address, OUI, or IAB query, you’re pulling more than just a name. The tool decodes what’s encoded in the address itself:

• Manufacturer and registered vendor name
• Location data tied to the company’s physical address
• Virtual machine detection whether the interface belongs to a VM
• IEEE research-level detail sourced from registered, assigned records

Physical address, burned-in address, BIA, ethernet hardware address these aren’t just technical labels. They point back to identities that Dell, Cisco, Belkin, and hundreds of other NIC manufacturers baked into ROM or BIOS at the factory level. Six groups of two hexadecimal digits, a 48-bit string, 12 hexadecimal characters all of it maps to something real and traceable.

How to Perform MAC Address/Vendor Lookup with Our Online Tool

To Check Vendor Details Using a MAC Address or OUI Number:

1. Load the MAC lookup tool and click the input box
2. Enter the MAC address or OUI number
3. Hit the blue Search button and let the MAC identifier run against the database
4. Once results appear, choose your download option:
   • Download MAC Details saves vendor information only
   • Download Results saves the full history data of that address

To Check MAC Address Prefixes for a Vendor:

1. Enter the company name into the input box
2. Click the Search button
3. Once the process completes, click Download All Records

The output returns a complete, structured list:

Field	Description
Address Prefix	The OUI prefix tied to the vendor
Start Address	First MAC address in the vendor’s range
End Address	Last MAC address in the vendor’s range
Physical Address	Company’s actual registered location

Why You Need to Perform MAC Address Lookup?

A tool that validates a MAC address in seconds sounds like a developer luxury but the use cases stretch well beyond that.

Use Case	What It Does
Network Identification	Identifies which device is connecting to a local network via its Ethernet or Wi-Fi adapter and tracks its activity
Network Security	Enables MAC address filtering so administrators can allow or deny devices based on their hardware address
Troubleshooting	Ties a MAC address to a specific manufacturer, speeding up diagnosis of connectivity problems
Device Management	Helps organizations track networked devices, manage configurations, and maintain an accurate inventory

Each of these scenarios demands accuracy and efficiency and a proper OUI lookup delivers both within seconds.

What is a MAC Address?

A MAC address media access control address is the unique ID burned into every network interface card at the manufacturing stage. Unlike IP addresses that shift with network assignment, this one is fixed in read-only memory or BIOS, which is why it’s also called a:

• Burned-in address (BIA)
• Physical address
• Ethernet hardware address

It’s written across six groups of two hexadecimal digits, formatted as:

• MM:MM:MM:SS:SS:SS
• MM-MM-MM-SS-SS-SS

NICs from manufacturers like Dell, Cisco, and Belkin each carry unique identifiers registered with IEEE. The address handles network communication between devices within a network segment and never changes regardless of where the device connects.

MAC Address Block Types:

Block Type	Full Name	Max Addresses
MA-L	MAC Address Block Large	2²⁴ = ~16 million
MA-M	MAC Address Block Medium	2²⁰ = ~1 million
MA-S (OUI-36)	MAC Address Block Small	2¹² = 4,096
IAB	Individual Address Blocks	2²⁴ = ~16 million

What is an OUI?

The first three octets of any MAC address form the OUI organizationally unique identifier. It’s a 24-bit number purchased and assigned by IEEE, and it never varies across NICs made by the same manufacturer.

Example: Take Dell’s physical address 00-14-22-04-25-37 the OUI is 00-14-22, and that prefix alone identifies Dell as the manufacturer regardless of what follows.

OUI	Registered Vendor
00:00:0A	Omron
00-0D-4B	Roku, LLC
00-14-22	Dell

Every OUI in existence is registered, assigned, and traceable back to a specific vendor through IEEE records. MA-L was previously what most people called OUI before the block naming system expanded to include MA-M, MA-S, and IAB categories.

How to find your MAC Address?

Finding your MAC address depends on your operating system. Here’s how to do it across all popular platforms:

Windows:

1. Press Windows + R, type cmd, and press Enter (or go through the Start button)
2. In Command Prompt, type ipconfig /all and press Enter
3. Locate the Physical Address or HWaddr field
4. Format: 00-14-22-04-25-37

MacOS:

• Option 1: System Preferences:
  1. Click Apple Menu > System Preferences
  2. Open the View menu and select Network
  3. Click Wi-Fi, Ethernet, or Airport icon on the left
  4. Click Advanced > Hardware tab
  5. Your MAC address appears in M:M:M:S:S:S format
• Option 2: Terminal:
  1. Open Terminal via Finder > Utilities
  2. Type networksetup -listallhardwareports and press Enter
  3. You’ll see all network interfaces listed with their Ethernet Address, including Bluetooth DUN, Bluetooth-Modem, FireWire fw0, Bluetooth PAN, and VLAN configurations

Linux or Unix:

1. Open a terminal as a superuser with appropriate permissions
2. Type ifconfig -a and press Enter
3. Look for eth0 your default ethernet adapter
4. Locate the HWaddr field format: 00-14-22-04-25-37

iOS:

1. Open Settings > General > About
2. Locate the Wi-Fi Address field
3. Format: M:M:M:S:S:S

Android:

• Method 1: Settings > Wireless & Networks > Wi-Fi Settings > Advanced
• Method 2: Settings > About Device > Hardware Info > Advanced

Can I lookup a device by MAC address?

Yes and it’s more useful than most people expect. Run any MAC address through the lookup tool and it returns the device’s brand, type, and model based solely on that hardware identifier. The NIC’s unique hexadecimal physical address is enough for the tool to identify the vendor and manufacturer behind it. No additional information needed.

Is it possible to track a device’s location using its MAC address?

This comes up often, and the honest answer is no not reliably, not feasibly. MAC addresses are built for local network communication. They don’t inherently carry location information, and tracking a device’s physical location through its MAC address alone isn’t something the protocol supports. It primarily operates within a network segment, not across geographic boundaries.

Can I find the MAC address of a device using its IP address?

Yes, and there are 7 ways to approach it:

Method	Tool / Approach
1	ARP command arp -a (Windows) or arp (Linux), or Ping command followed by IP address
2	DHCP server logs or DHCP lease table
3	Network monitoring tools Wireshark, TCPDump
4	Network scanners Nmap, Angry IP Scanner
5	Network configuration management or network inventory management tools
6	Network hardware router administration page, network switches, manufacturer tools
7	DNS reverse lookup or MAC lookup tool, or device logs

Can I have multiple MAC addresses on a single device?

Each network interface holds one unique MAC address that’s fixed. But a single system with more than one network device naturally carries more than one MAC address.

Device	Interfaces	MAC Addresses
Laptop	Ethernet port + Wi-Fi card	2 MAC addresses
Desktop (single NIC)	Ethernet only	1 MAC address

Multiple interfaces mean multiple unique identifiers simple as that.

How to get a list of all MAC Addresses of a vendor?

Enter the vendor name say, Hewlett Packard into the MAC Address lookup input box. The MAC identifier fetches every MAC address registered to that vendor and displays the full results list. It’s a straightforward way to pull vendor-level address data without digging through IEEE records manually.