What this means
The IEEE assigned the MA-L block 640DCE to SHENZHEN MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD.. 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 64:0D:CE, it is SHENZHEN MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix 640DCE?
640DCE is registered to SHENZHEN MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD. in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. SHENZHEN MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD.'s block covers 16,777,216 addresses.
What devices use 640DCE?
Any network device with a MAC address starting 64:0D:CE was manufactured by or for SHENZHEN MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD..