PESA Inc.

Any device whose MAC address begins with 00:0B:3A has a network interface built by PESA Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:0B:3A

Organization

PESA Inc.

Address

103 Quality Circle, Suite 210 Huntsville AL US 35806

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.