BlackBerry RTS

Any device whose MAC address begins with 00:25:57 has a network interface built by BlackBerry RTS. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:25:57

Organization

BlackBerry RTS

Address

440 Phillip Street Waterloo Ontario CA N2L 5W9

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.