RIM Testing Services

Any device whose MAC address begins with 00:21:06 has a network interface built by RIM Testing Services. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:21:06

Organization

RIM Testing Services

Address

440 Phillip Street Waterloo ON CA N2L 5R9

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.