OUI Lookup
00121b
Sound Devices, LLC
Manufacturer Information
- OUI Prefix
- 00121b
- Manufacturer
- Sound Devices, LLC
- Address
- 300 Wengel Drive Reedsburg WI US 53959
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 00121B
The OUI prefix 00121B is assigned to Sound Devices, LLC, based in 300 Wengel Drive Reedsburg WI US 53959 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to Sound Devices, LLC.