Tuya holds about 38 MA-L blocks registered as "Tuya Smart Inc." (Hangzhou, China), and it is the single most important white-label signal in this batch. Tuya makes Wi-Fi modules and a cloud IoT platform that power thousands of rebranded smart-home devices — plugs, bulbs, switches, sensors, cameras — sold under countless brand names through the Smart Life app ecosystem. The key identification fact: a Tuya OUI identifies a Tuya-module-based device regardless of the brand on the box, exactly like a chipset/ODM identifier (compare Espressif or HiSilicon). Tuya's modules are frequently built on Espressif ESP, Realtek, or Beken Wi-Fi chips. Verified prefix samples include 1C:90:FF, 18:69:D8, and 50:8A:06. Tuya is a publicly-listed company (NYSE: TUYA; HKEX: 2391). The analyst angle that matters: a Tuya OUI means a white-label IoT device using the Tuya/Smart Life cloud, which carries significant supply-chain and data-egress implications (telemetry commonly to Chinese cloud endpoints). For triage, classify by the OUI rather than trusting the device's purported brand, and treat it as a high-priority egress / data-sovereignty signal worth monitoring outbound destinations for.
- IEEE assignment
- ~38 prefixes → "Tuya Smart Inc.", registered Hangzhou, China [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L; ~38 blocks (~637M addresses) [Confirmed] — maclookup.app (IEEE-sourced)
- HQ / country
- Hangzhou, China [Confirmed] — maclookup.app
- Company status
- active; publicly listed (NYSE: TUYA; HKEX: 2391) [Confirmed] — maclookup.app
- Device types
- Wi-Fi modules + cloud IoT platform powering thousands of white-label smart plugs, bulbs, switches, sensors, cameras (Smart Life ecosystem) [Confirmed] — maclookup.app, netify.ai
- Notable products
- Tuya Wi-Fi modules, Tuya IoT cloud, Smart Life app ecosystem
- Verified prefix sample
- 1C:90:FF, 18:69:D8, 50:8A:06 [Confirmed] — maclookup.app, macverify.com
- Special note
- KEY ODM signal — a Tuya OUI identifies a Tuya-module-based device REGARDLESS of the brand on the box (like Espressif/HiSilicon). Modules frequently built on Espressif ESP, Realtek, or Beken Wi-Fi chips. Significant supply-chain/data-egress implications (telemetry often to Chinese cloud endpoints). The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed for registrant/blocks; Likely for specific chipset mix]
- Related vendors
- Espressif, Realtek, Beken (chipset suppliers); Smart Life ecosystem brands
- Analyst note
- A Tuya OUI = a white-label IoT device using the Tuya/Smart Life cloud; treat as a high-priority egress / data-sovereignty signal. The brand label is unreliable — classify by OUI and monitor outbound destinations.