Espec Corp.

Any device whose MAC address begins with 38:BF:2F has a network interface built by Espec Corp.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

38:BF:2F

Organization

Espec Corp.

Address

5-2-5 Kanokodai Minamimachi Kobe City Hyogo JP 561-1514

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.