Look up the manufacturer and vendor details for any MAC address using the OUI (Organizationally Unique Identifier) database.
📡 MAC Address Lookup
A MAC (Media Access Control) address is a 48-bit hardware identifier assigned to every network interface card at manufacture. The first 24 bits (the OUI — Organizationally Unique Identifier) identify the manufacturer, which is registered with the IEEE. This tool looks up the OUI to reveal the device's manufacturer.
🏭 OUI Database
The IEEE maintains the public OUI registry mapping the first three octets of every MAC address to the manufacturer that registered that block.
🔒 Network Security
MAC lookup helps identify unknown devices on your network — a sudden unknown manufacturer in your DHCP table can indicate an intruder or rogue device.
📱 Device Fingerprinting
Identify whether a device is a smartphone (Apple, Samsung), IoT device (Espressif, Raspberry Pi Foundation), or networking equipment (Cisco, TP-Link).
🔄 MAC Randomisation
Modern phones (iOS 14+, Android 10+) randomise MAC addresses per network to prevent tracking. Random MACs won't match a real manufacturer entry.
❓ Frequently Asked Questions
Is a MAC address the same as an IP address?
No. A MAC address is a hardware-layer (Layer 2) identifier used within a local network. An IP address is a network-layer (Layer 3) identifier used for routing across the internet. MACs don't travel beyond your router.
What format should I enter the MAC address in?
Most formats are accepted: colon-separated (AA:BB:CC:DD:EE:FF), dash-separated (AA-BB-CC-DD-EE-FF), or unformatted (AABBCCDDEEFF). Only the first 6 characters (OUI) are needed for manufacturer lookup.