KAIMEI ELECTRONI

Any device whose MAC address begins with 00:12:5B has a network interface built by KAIMEI ELECTRONI. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:12:5B

Organization

KAIMEI ELECTRONI

Address

14-3F, NO.81,SEC. 1,HSIN-TAI-WU ROAD,HSICHIH, TAIPEI HSIEN HSICHIH TW 221

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.