Power-One as

Any device whose MAC address begins with 00:0A:5B has a network interface built by Power-One as. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:0A:5B

Organization

Power-One as

Address

P.O. Box 1543 Drammen NO 3007

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.