AMDAHL

Any device whose MAC address begins with 00:80:83 has a network interface built by AMDAHL. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:80:83

Organization

AMDAHL

Address

1250 EAST ARQUES AVENUE SUNNYVALE CA US 94088-3470

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.