Z'SEDAI KENKYUSHO CORPORATION

Any device whose MAC address begins with 7C:7B:E4 has a network interface built by Z'SEDAI KENKYUSHO CORPORATION. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

7C:7B:E4

Organization

Z'SEDAI KENKYUSHO CORPORATION

Address

Meikai sannomiya 2nd Bldg. 11th/fl. Kobe Hyogo JP 650-0034

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.