ProMax Systems, Inc.

Any device whose MAC address begins with 00:E0:66 has a network interface built by ProMax Systems, Inc.. 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:E0:66

Organization

ProMax Systems, Inc.

Address

16 TECHNOLOGY DRIVE--BLDG.#106 IRVINE CA US 92656

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.