What this means
The IEEE assigned the MA-L block A4431B to Dreamtek Intelligent 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 A4:43:1B, it is Dreamtek Intelligent Technology Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix A4431B?
A4431B is registered to Dreamtek Intelligent 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. Dreamtek Intelligent Technology Co., Ltd's block covers 16,777,216 addresses.
What devices use A4431B?
Any network device with a MAC address starting A4:43:1B was manufactured by or for Dreamtek Intelligent Technology Co., Ltd.