COUNTERPOINT COMPUTER INC.

Any device whose MAC address begins with 08:00:5E has a network interface built by COUNTERPOINT COMPUTER 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

08:00:5E

Organization

COUNTERPOINT COMPUTER INC.

Address

2127 RINGWOOD AVENUE SAN JOSE CA US 95131

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.