Sonos holds about 15 IEEE blocks (MA-L plus one CID) registered as "Sonos, Inc." at 301 Coromar Dr, Goleta, CA (the Santa Barbara area). These OUIs appear on the Sonos multi-room audio ecosystem: wireless smart speakers, soundbars, and network audio players/amps, which support AirPlay 2 and form their own SonosNet mesh. Verified samples include 00:0E:58, 5C:AA:FD, 78:28:CA, B8:E9:37, 94:9F:3E, and F0:F6:C1. Sonos speakers are extremely common on home networks and usually appear as a cluster of several devices (multi-room). For triage, a Sonos OUI is almost always a consumer audio device, and in enterprise contexts it should be treated as shadow-IT/IoT.
- IEEE assignment
- ~15 blocks → Sonos, Inc. (MA-L plus one CID), registered Goleta, CA, US [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L (plus one CID block); ~15 blocks total [Confirmed] — maclookup.app (IEEE-sourced)
- HQ / country
- 301 Coromar Dr, Goleta, CA 93117, US [Confirmed] — IEEE MA-L
- Company status
- active [Confirmed] — maclookup.app/vendors/sonos-inc
- Device types
- wireless smart speakers, soundbars, network audio players/amps (Sonos multi-room ecosystem) [Confirmed] — maclookup.app
- Notable products
- Sonos One/Era speakers, Beam/Arc soundbars, Port/Amp
- Verified prefix sample
- 00:0E:58, 5C:AA:FD, 78:28:CA, B8:E9:37, 94:9F:3E, F0:F6:C1 [Confirmed] — maclookup.app
- Special note
- Devices support AirPlay 2 and form their own SonosNet mesh; typically appear as a multi-device cluster. The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed] — maclookup.app
- Related vendors
- none significant
- Analyst note
- A Sonos OUI is almost always a consumer audio device and usually appears as a cluster (multi-room); in enterprise contexts, treat as shadow-IT/IoT.