What this means
The IEEE assigned the MA-L block 900CB4 to Alinket Electronic 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 90:0C:B4, it is Alinket Electronic Technology Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 900CB4?
900CB4 is registered to Alinket Electronic 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. Alinket Electronic Technology Co., Ltd's block covers 16,777,216 addresses.
What devices use 900CB4?
Any network device with a MAC address starting 90:0C:B4 was manufactured by or for Alinket Electronic Technology Co., Ltd.