KDDI Network & Solultions Inc.

Any device whose MAC address begins with 00:05:46 has a network interface built by KDDI Network & Solultions 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

00:05:46

Organization

KDDI Network & Solultions Inc.

Address

2-3-1, Nishishinjunku-ku, Tokyo JP 163-0907

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.