Lava Computer Mfg., Inc.

Any device whose MAC address begins with 00:04:3B has a network interface built by Lava Computer Mfg., 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

00:04:3B

Organization

Lava Computer Mfg., Inc.

Address

2 Vulcan St. CANADA CA M9W-1L2

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.