With-Net Inc

Any device whose MAC address begins with 00:08:CD has a network interface built by With-Net 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

00:08:CD

Organization

With-Net Inc

Address

4FL B&B B/D 1403-4 Anyang Kyonggi US 431-061

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.