Who owns MAC prefix 1C21D17?

1C21D17 is registered to Soundtrack Your Brand Sweden AB in the IEEE MA-M registry.

What devices use 1C21D17?

Any network device with a MAC address starting 1C:21:D1:7 was manufactured by or for Soundtrack Your Brand Sweden AB.

MA-M · OUI prefix

Soundtrack Your Brand Sweden AB

Any MAC address starting 1C:21:D1:7 is registered to Soundtrack Your Brand Sweden AB in SE.

OUI prefix	1C21D17
Vendor	Soundtrack Your Brand Sweden AB
Registry	MA-M (28-bit, medium block)
Country	SE
Example MAC	1C:21:D1:7:00:00:00

What this means

The IEEE assigned the MA-M block 1C21D17 to Soundtrack Your Brand Sweden AB. 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 1C:21:D1:7, it is Soundtrack Your Brand Sweden AB hardware.

Look up another MAC