What this means
The IEEE assigned the MA-L block 645A04 to Chicony Electronics 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 64:5A:04, it is Chicony Electronics Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 645A04?
645A04 is registered to Chicony Electronics 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. Chicony Electronics Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 645A04?
Any network device with a MAC address starting 64:5A:04 was manufactured by or for Chicony Electronics Co., Ltd..