Airoha holds a single MA-L block — 0C:FC:83 (about 16.77 million addresses) — registered as "Airoha Technology Corp.," (the exact IEEE string includes a trailing comma) in Hsinchu, Taiwan. The company was founded in 2001 and is a MediaTek subsidiary; per the Taipei Times (2025-10-16), MediaTek owns about a 66 percent stake in Airoha. Its silicon spans Bluetooth-audio/TWS SoCs (used by some major-brand earbuds), connectivity ICs, and networking/GPON silicon absorbed from MediaTek lines. The key analyst point is the chipset pattern combined with a small footprint: an Airoha OUI identifies a device built on Airoha BT-audio or networking silicon regardless of brand, but because only one MA-L block is on file, Airoha's OUI footprint is small relative to its chip volume — most Airoha-based devices surface under the brand's or another chipmaker's OUI. For triage, 0C:FC:83 is the only Airoha-tagged prefix, so seeing it suggests an Airoha-silicon device, but the absence of an Airoha OUI does not rule out Airoha silicon, since most BT-audio MACs are brand- or randomly-assigned.
- IEEE assignment
- 1 prefix → "Airoha Technology Corp.," (0C:FC:83), registered Hsinchu, Taiwan [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L; 1 block (~16.77M addresses) [Confirmed] — maclookup.app (IEEE-sourced)
- HQ / country
- Hsinchu, Taiwan [Confirmed] — maclookup.app
- Company status
- active; founded 2001; MediaTek subsidiary — MediaTek owns ~66% [Confirmed] — Taipei Times 2025-10-16
- Device types
- Bluetooth-audio/TWS SoCs, connectivity ICs, networking/GPON silicon [Confirmed] — maclookup.app
- Notable products
- Airoha TWS SoCs (used by some major-brand earbuds); connectivity/networking silicon absorbed from MediaTek lines
- Verified prefix
- 0C:FC:83 (MA-L) [Confirmed] — maclookup.app
- Special note
- Chipset-OUI flag with a small footprint. An Airoha OUI identifies a device built on Airoha silicon regardless of brand; only one MA-L block is on file, so most Airoha-based devices surface under the brand's or another chipmaker's OUI. The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed]
- Related vendors
- MediaTek (~66% owner/parent)
- Analyst note
- 0C:FC:83 is the only Airoha-tagged prefix; seeing it suggests an Airoha-silicon device, but absence of an Airoha OUI does NOT rule out Airoha silicon, since most BT-audio MACs are brand- or randomly-assigned.