Who owns MAC prefix 542A1B?

542A1B is registered to Sonos, Inc. in the IEEE MA-L registry.

What devices use 542A1B?

Any network device with a MAC address starting 54:2A:1B was manufactured by or for Sonos, Inc..

MA-L · OUI prefix

Sonos, Inc.

Any MAC address starting 54:2A:1B is registered to Sonos, Inc. in US.

OUI prefix	542A1B
Vendor	Sonos, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	54:2A:1B:00:00:00

What this means

The IEEE assigned the MA-L block 542A1B 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 54:2A:1B, it is Sonos, Inc. hardware.

Other Sonos, Inc. prefixes

Sonos, Inc. holds 15 registered blocks in total.

000E58 347E5C 38420B 48A6B8 5CAAFD 60F620 74CA60 7828CA 804AF2 949F3E B8E937 C43875 all 15 »

Look up another MAC