CUMULUS CORPORATIION

Any device whose MAC address begins with 00:80:E8 has a network interface built by CUMULUS CORPORATIION. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:80:E8

Organization

CUMULUS CORPORATIION

Address

23500 MERCANTILE ROAD CLEVELAND OH US 44122

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.