What this means
The IEEE assigned the MA-S block 8C1F64D5A to Realtek Semiconductor Corp.. 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 8C:1F:64:D5:A, it is Realtek Semiconductor Corp. hardware.
Frequently Asked Questions
Who owns MAC prefix 8C1F64D5A?
8C1F64D5A is registered to Realtek Semiconductor Corp. in the IEEE MA-S registry.
What does the MA-S registry type mean?
An MA-S assignment, formerly called OUI-36, covers 36 bits, giving the vendor 4,096 device addresses, the smallest block the IEEE issues. Realtek Semiconductor Corp.'s block covers 4,096 addresses.
What devices use 8C1F64D5A?
Any network device with a MAC address starting 8C:1F:64:D5:A was manufactured by or for Realtek Semiconductor Corp..