TELLUS TECHNOLOGY INC.

Any device whose MAC address begins with 00:90:FF has a network interface built by TELLUS TECHNOLOGY 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

00:90:FF

Organization

TELLUS TECHNOLOGY INC.

Address

40990 ENCYCLOPEDIA CIR. FREMONT CA US 94538-2470

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.