MAC Address Lookup
Find the manufacturer of any network device
Accepts: AA:BB:CC:DD:EE:FF, AA-BB-CC-DD-EE-FF, AABB.CCDD.EEFF, AABBCCDDEEFF
About MAC Address Lookup
A MAC (Media Access Control) address is a unique 48-bit hardware identifier assigned to every network interface card (NIC). It consists of six pairs of hexadecimal digits (e.g., AA:BB:CC:DD:EE:FF) and operates at the data link layer (Layer 2) of the OSI model for local network communication.
What is an OUI?
The OUI (Organizationally Unique Identifier) is the first three octets (24 bits) of a MAC address. It is assigned by the IEEE to device manufacturers and uniquely identifies the vendor that produced the network interface. For example, Apple, Intel, and Samsung each have their own registered OUI prefixes.
How to Find Your MAC Address
Open Command Prompt and run ipconfig /all — look for "Physical Address"
System Settings > Network > Details > Hardware, or run ifconfig in Terminal
Run ip link or ifconfig in a terminal
iOS: Settings > General > About > Wi-Fi Address. Android: Settings > About Phone > Status
MAC Address vs IP Address
A MAC address is a permanent hardware identifier used for communication within a local network (Layer 2), while an IP address is a logical address assigned by the network for routing traffic across the internet (Layer 3). MAC addresses are typically fixed by the manufacturer, whereas IP addresses can change depending on the network you connect to.
Related tools: Use our IP Lookup tool to find the location of an IP address. Check your own IP address or look up DNS records for any domain.
Frequently Asked Questions
What is a MAC address?
A MAC (Media Access Control) address is a unique hardware identifier assigned to every network interface card (NIC). It's a 12-character hexadecimal code (like 00:1A:2B:3C:4D:5E) burned into the device by the manufacturer.
What can a MAC address lookup tell me?
A MAC address lookup identifies the manufacturer (vendor) of a network device using the first 6 characters (OUI — Organizationally Unique Identifier). This helps identify unknown devices on your network.
Can a MAC address reveal my location?
No. Unlike IP addresses, MAC addresses are only visible on the local network and do not travel across the internet. They identify the device hardware, not its geographic location.
Can MAC addresses be changed or spoofed?
Yes. While the hardware MAC address is permanent, most operating systems allow you to set a custom (spoofed) MAC address in software. This is used for privacy, network testing, and bypassing MAC-based access controls.
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