PROSYST

Any device whose MAC address begins with B4:CC:E9 has a network interface built by PROSYST. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

B4:CC:E9

Organization

PROSYST

Address

2C Rue de l' EPINOY TEMPLEMARS FR 59175

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.