What this means
The IEEE assigned the MA-L block 409249 to Shanghai Baud Data Communication 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 40:92:49, it is Shanghai Baud Data Communication Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 409249?
409249 is registered to Shanghai Baud Data Communication 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. Shanghai Baud Data Communication Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 409249?
Any network device with a MAC address starting 40:92:49 was manufactured by or for Shanghai Baud Data Communication Co.,Ltd..