What this means
The IEEE assigned the MA-L block 90749D to IRay 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 90:74:9D, it is IRay Technology Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 90749D?
90749D is registered to IRay 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. IRay Technology Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 90749D?
Any network device with a MAC address starting 90:74:9D was manufactured by or for IRay Technology Co., Ltd..