What this means
The IEEE assigned the MA-S block 8C1F64D38 to CUU LONG TECHNOLOGY AND TRADING COMPANY LIMITED. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 8C:1F:64:D3:8, it is CUU LONG TECHNOLOGY AND TRADING COMPANY LIMITED hardware.
Frequently Asked Questions
Who owns MAC prefix 8C1F64D38?
8C1F64D38 is registered to CUU LONG TECHNOLOGY AND TRADING COMPANY LIMITED in the IEEE MA-S registry.
What does the MA-S registry type mean?
An MA-S assignment, formerly called OUI-36, covers 36 bits, giving the vendor 4,096 device addresses, the smallest block the IEEE issues. CUU LONG TECHNOLOGY AND TRADING COMPANY LIMITED's block covers 4,096 addresses.
What devices use 8C1F64D38?
Any network device with a MAC address starting 8C:1F:64:D3:8 was manufactured by or for CUU LONG TECHNOLOGY AND TRADING COMPANY LIMITED.