MAC Address Vendor Lookup
1. Enter MAC Address
Load Sample
2. Vendor Lookup Output
How to Use the MAC Address Vendor Lookup
- Enter a valid MAC address (e.g., 00:1A:2B:3C:4D:5E).
- Click the Lookup button.
- View the vendor name, OUI, and address details.
Formulas and Technical Logic
A MAC address has 48 bits (6 bytes). The first 24 bits (3 bytes) form the Organizationally Unique Identifier (OUI). The OUI identifies the hardware manufacturer. The tool extracts this prefix and queries a database of registered IEEE assignments to find the matching vendor.
Key Features
- Instant OUI extraction.
- Supports multiple formats (colon, hyphen, dot).
- Comprehensive vendor database.
- Privacy-focused (no data logged).
Reference Table: Common OUIs
| OUI Prefix | Vendor |
|---|---|
| 00:1A:11 | Google, Inc. |
| 00:03:93 | Apple, Inc. |
| 00:50:56 | VMware, Inc. |
| 28:16:A8 | Microsoft Corporation |
Frequently Asked Questions
What is an OUI?
An Organizationally Unique Identifier is a 24-bit number identifying the manufacturer of a network adapter.
Can a MAC address be changed?
Yes. MAC spoofing allows a user to change the MAC address in the operating system, although the hardware address remains the same.