Altierre

Any device whose MAC address begins with 28:C7:18 has a network interface built by Altierre. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

28:C7:18

Organization

Altierre

Address

1980 Concourse Drive San Jose United States 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.