CYRA TECHNOLOGIES, INC.

Any device whose MAC address begins with 00:30:90 has a network interface built by CYRA TECHNOLOGIES, 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

00:30:90

Organization

CYRA TECHNOLOGIES, INC.

Address

8000 CAPWELL DRIVE OAKLAND CA US 94621

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.