What this means
The IEEE assigned the MA-L block 249E7D to Beijing Roborock 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 24:9E:7D, it is Beijing Roborock Technology Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 249E7D?
249E7D is registered to Beijing Roborock 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. Beijing Roborock Technology Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 249E7D?
Any network device with a MAC address starting 24:9E:7D was manufactured by or for Beijing Roborock Technology Co., Ltd..