What this means
The IEEE assigned the MA-L block 347E5C to Sonos, 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 34:7E:5C, it is Sonos, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 347E5C?
347E5C is registered to Sonos, 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. Sonos, Inc.'s block covers 16,777,216 addresses.
What devices use 347E5C?
Any network device with a MAC address starting 34:7E:5C was manufactured by or for Sonos, Inc..