What this means
The IEEE assigned the MA-L block 84E657 to Sony Interactive Entertainment Inc.. 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 84:E6:57, it is Sony Interactive Entertainment Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 84E657?
84E657 is registered to Sony Interactive Entertainment Inc. 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. Sony Interactive Entertainment Inc.'s block covers 16,777,216 addresses.
What devices use 84E657?
Any network device with a MAC address starting 84:E6:57 was manufactured by or for Sony Interactive Entertainment Inc..