MAC Address Lookup Tool
Identify device manufacturers from MAC addresses
Tip: Enter any MAC address to find the manufacturer. Formats like 00:1A:2B:3C:4D:5E or 00-1A-2B-3C-4D-5E are accepted.
MAC Address Information
Basic Information
MAC Address:-
OUI:-
Address Type:-
Vendor Details
Company:-
Country:-
Address:-
Binary Representation
| OUI (First 3 Bytes) | NIC (Last 3 Bytes) |
|---|---|
| - | - |
About This MAC
Understanding MAC Addresses
MAC Address Structure
- 48-bit unique identifier (12 hex characters)
- First 3 bytes: OUI (Organizationally Unique Identifier)
- Last 3 bytes: NIC (Network Interface Controller)
- Common formats: 00:1A:2B:3C:4D:5E or 00-1A-2B-3C-4D-5E
Address Types
- Unicast: Single device address
- Multicast: Group of devices
- Broadcast: FF:FF:FF:FF:FF:FF
- Locally Administered: Second character is 2,6,A,E
"The IEEE allocates OUIs to manufacturers, with over 40,000 registered organizations as of 2023."
Common MAC Address Prefixes
| OUI Prefix | Company | Device Type |
|---|---|---|
| 00:1A:2B | Intel | Network adapters |
| 00:0C:29 | VMware | Virtual machines |
| 00:1E:65 | Apple | iPhones, Macs |
| 00:50:C2 | Microsoft | Xbox, Surface |
| 00:1D:0F | Cisco | Network equipment |
Note: Some manufacturers use multiple OUI prefixes, and some prefixes may be reassigned over time.
MAC Address FAQs
What is a MAC address used for?
MAC (Media Access Control) addresses are unique identifiers assigned to network interfaces for communications at the data link layer of a network segment. They're used for local network communication, while IP addresses are used for routing across networks.
Can a MAC address be changed?
Most network interfaces allow MAC address spoofing, where you can temporarily change the software-reported address. However, the burned-in hardware address (BIA) in the device's ROM cannot be changed.
Are MAC addresses unique worldwide?
In theory, yes - each OUI is unique to a manufacturer, who then assigns unique NIC portions. However, virtual machines and some devices may use duplicate or locally administered addresses.
How can I find my device's MAC address?
Windows: ipconfig /all
macOS/Linux: ifconfig or ip a
Android: Settings → About Phone → Status
iOS: Settings → General → About → Wi-Fi Address
What does a locally administered MAC address mean?
If the second character of a MAC address is 2, 6, A, or E (e.g., 02:1A:2B:...), it indicates the address was manually assigned rather than using the manufacturer's burned-in address. Common in virtual environments.