GX International BV

Any device whose MAC address begins with B4:3D:08 has a network interface built by GX International BV. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

B4:3D:08

Organization

GX International BV

Address

Waldfeuchterbaan 124 Maria Hoop Maria Hoop NL 6105 BP

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.