MAC Address & OUI Vendor Lookup
Determine the manufacturer of any network device (Apple, Cisco, Intel, Samsung, Raspberry Pi) using its Media Access Control (MAC) address. Features automatic format normalization across colons, hyphens, and Cisco notation.
How to Use MAC Address Lookup & OUI Vendor Finder
Input MAC Address
Paste any MAC address in any format (e.g., 00:1A:2B:3C:4D:5E or 001a.2b3c.4d5e).
Lookup Vendor
Instantly view the registered hardware vendor, OUI prefix, and unicast/multicast type.
Format MAC
Copy the normalized address with custom delimiter styles.
About MAC Address Lookup & OUI Vendor Finder
A standard MAC address comprises 48 bits (6 octets). The first 24 bits (3 octets) constitute the Organizationally Unique Identifier (OUI) assigned by the IEEE to hardware manufacturers, while the remaining 24 bits represent the vendor's unique Network Interface Controller (NIC) serial number.
Key Features
- Identifies manufacturer via IEEE 24-bit Organizationally Unique Identifier (OUI)
- Normalizes all standard delimiters: Colons (00:11:22:33:44:55), Hyphens (00-11-22-33-44-55), Cisco Dots (0011.2233.4455)
- Detects Unicast vs Multicast and Universally Administered vs Locally Administered (U/L bit)
- Includes offline database of major networking manufacturers
- Complete client-side privacy
Frequently Asked Questions
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