ULTRA-X ASIA PACIFIC Inc.

Any device whose MAC address begins with 00:1B:D2 has a network interface built by ULTRA-X ASIA PACIFIC 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

00:1B:D2

Organization

ULTRA-X ASIA PACIFIC Inc.

Address

5-1-15 Sotokanda Tokyo Chiyoda-ku JP 101-0021

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.