What this means
The IEEE assigned the MA-L block 0C8509 to SHEN ZHEN TENDA TECHNOLOGY 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 0C:85:09, it is SHEN ZHEN TENDA TECHNOLOGY CO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 0C8509?
0C8509 is registered to SHEN ZHEN TENDA TECHNOLOGY 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. SHEN ZHEN TENDA TECHNOLOGY CO.,LTD's block covers 16,777,216 addresses.
What devices use 0C8509?
Any network device with a MAC address starting 0C:85:09 was manufactured by or for SHEN ZHEN TENDA TECHNOLOGY CO.,LTD.