Apex, Inc.

Any device whose MAC address begins with 00:02:99 has a network interface built by Apex, 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

00:02:99

Organization

Apex, Inc.

Address

9911 Willows Rd. N.E. Redmond WA US 95052

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.