What this means
The IEEE assigned the MA-L block 748B34 to Shanghai Smart System 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 74:8B:34, it is Shanghai Smart System Technology Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 748B34?
748B34 is registered to Shanghai Smart System 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. Shanghai Smart System Technology Co., Ltd's block covers 16,777,216 addresses.
What devices use 748B34?
Any network device with a MAC address starting 74:8B:34 was manufactured by or for Shanghai Smart System Technology Co., Ltd.