Piranti

Any device whose MAC address begins with B4:CC:04 has a network interface built by Piranti. 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:04

Organization

Piranti

Address

126, Beolmal-ro Dongan-gu, Anyang-si, Gyeonggi-do KR 14057

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.