Act KDE, Inc.: MAC prefix identifies a registry assignment
Summary
- // what this is
- Act KDE is registered to MAC prefix
68:B8:D9in the IEEE OUI database. When a device's MAC address begins with68:B8:D9, that block was registered by Act KDE — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- A match to 68:B8:D9 identifies the MA-L registry assignment. The 24-bit prefix leaves 24 bits, or 16,777,216 possible suffix values; this is not a device or shipment count. In the first octet 68, the Group and Local bits are both 0. A change to either bit changes the prefix. An exact prefix match does not establish the identity or security state of a device.
About this vendor.
A MAC address beginning with 68:B8:D9 matches an IEEE MA-L assignment to Act KDE, Inc.; the supplied evidence does not identify a device category or product using it. A match establishes the registered prefix only, not a device’s maker, operating system, current vendor identity, or security state.
The prefix is 24 bits long, leaving 24 bits (16,777,216 possible suffix values) for the remainder of a 48-bit address. That number describes possible values, not observed devices, shipments, or deployed addresses. RFC 7042 explains that a 48-bit MAC identifier may use an initial OUI followed by additional bits, and describes the Group and Local bits in the first octet.
For this exact prefix, the first octet is 68 (binary 01101000): its Group bit is 0 and its Local bit is 0. A captured address beginning with these exact 24 bits therefore matches the assignment boundary. Altering either bit changes the prefix and does not describe variation within this fixed assignment.
- Device category
- Unknown [Unknown] — https://www.rfc-editor.org/rfc/rfc7042.txt