SMK corporation
Any device whose MAC address begins with 7C:31:80 has a network interface built by SMK 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:31:80
- Organization
- SMK corporation
- Address
- 6-5-5 Togoshi Shinagawa JP 1428511
- 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.