u-blox AG

Any device whose MAC address begins with B8:F4:4F has a network interface built by u-blox AG. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

B8:F4:4F

Organization

u-blox AG

Address

Zuercherstrasse, 68 Thalwil Switzerland CH CH-8800

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.