Identify vendor and allocation ranges from MAC prefixes.
Standardize separators for better normalization.
This page identifies the organization registered to the OUI portion of a MAC address. The lookup form stays intact, while the added content explains that OUI ownership points to a registered manufacturer block, not always the exact device brand in the field.
Enter a MAC address in common formats such as colon, dash, or compact notation. The page normalizes the value and extracts the vendor prefix.
The tool matches the OUI or related assignment range against vendor registration data and returns the associated organization details when available.
Enter a MAC address captured from a switch table or endpoint inventory. The result helps you identify the registered vendor block and can add context to hardware troubleshooting or asset review.
Use MAC lookup for inventory cleanup, NAC reviews, endpoint troubleshooting, and identifying likely hardware vendors.
The result reflects registered OUI ownership. It does not guarantee the exact model, reseller branding, or currently installed hardware.
It shows the vendor or organization associated with the registered OUI portion of a MAC address and related allocation details when available.
It is useful for inventory, troubleshooting, NAC review, and understanding what manufacturer likely produced a device interface.
The result reflects the registered OUI, not guaranteed current device branding or the exact product model using the address.
Move from device identity into IP ownership context.
Resolve hostnames before tying them back to network assets.