Nagano Japan Radio Co., Ltd.

Any device whose MAC address begins with 00:01:09 has a network interface built by Nagano Japan Radio Co., Ltd.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:01:09

Organization

Nagano Japan Radio Co., Ltd.

Address

Shimohigano 1163, Inasato-machi Nagano 381-2288 JP

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.