Hong Kong Bouffalo Lab Limited — 3 prefixes (MA-L)

Hong Kong Bouffalo Lab Limited is the IEEE OUI registrant behind three MA-L blocks — 18:B9:05, 24:94:94, and B4:E8:42 — registered to a Causeway Bay, Hong Kong address (RM 1903, 19/F Lee Garden One, 33 Hysan Avenue). The registrant is a distinct legal shell from the operating company that actually designs the silicon: Bouffalo Lab (Nanjing) Co., Ltd., a Nanjing-based fabless semiconductor house that develops RISC-V AIoT wireless SoCs. The Bouffalo Lab part family — BL602/BL604 (Wi-Fi + BLE), BL702/BL706/BL702L/BL704L (BLE + Zigbee), and the BL808 (a multi-core AIoT chip with an onboard NPU for edge inference) — supports Matter, Thread, Bluetooth Mesh, and 2.4 GHz Wi-Fi, and ships into smart-home, smart-hotel, and consumer IoT end-devices. Bouffalo does not build finished devices itself; it supplies SoCs to OEMs, so a Bouffalo OUI on a MAC most often surfaces inside a third-party smart plug, relay, gateway, or appliance rather than a Bouffalo-branded product. The chips have an active open-source ecosystem (NuttX, Zephyr, community toolchains), but no Bouffalo-specific CVEs were found as of June 2026. One data-quality caveat for any registration-date work: IEEE publishes no assignment dates for OUI/MA-L blocks, so the only confirmed date for this entity is its Hong Kong Companies Registry incorporation (05-Aug-2016) — a company fact, not an IEEE OUI fact.

IEEE assignment

3 prefixes → Hong Kong Bouffalo Lab Limited, registered Causeway Bay, Hong Kong, HK [Confirmed] — IEEE MA-L (lines 17311, 24858, 33400)

Registry / block size

MA-L (24-bit OUI); 3 IEEE prefixes [Confirmed] — IEEE MA-L. NOTE: IEEE's public OUI data publishes NO assignment/registration date (the IEEE MA-L registry columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" on third-party tools (maclookup.app, macaddress.io, hwaddress.com) is a database artifact, not an IEEE fact.

HQ / country

RM 1903, 19/F Lee Garden One, 33 Hysan Avenue, Causeway Bay, Hong Kong 999077, HK (registry address) [Confirmed] — IEEE MA-L; https://hwaddress.com/company/hong-kong-bouffalo-lab-limited/

Legal entity

Hong Kong Bouffalo Lab Limited (CR No. 2412226; Business Reg No. 66516087); status Live, last annual return filed 12-Aug-2025 [Confirmed] — https://www.ltddir.com/companies/hong-kong-bouffalo-lab-limited/

Incorporation date

05-Aug-2016 (Hong Kong Companies Registry) — this is a COMPANY registration date for the HK entity, NOT an IEEE OUI assignment date [Confirmed] — https://www.ltddir.com/companies/hong-kong-bouffalo-lab-limited/

Operating parent

Bouffalo Lab (Nanjing) Co., Ltd. — the fabless R&D / chip-design company headquartered in Nanjing, China (Jiangbei New District); the HK entity is the registered address used for IEEE OUI assignments [Confirmed] — https://en.bouffalolab.com/

Device types

semiconductor / SoC vendor — RISC-V AIoT wireless SoCs supplied to OEMs (not an end-device maker). Wi-Fi + BLE (BL602/BL604), BLE + Zigbee (BL702/BL706/BL702L/BL704L), multi-core AIoT with NPU (BL808). Supports Matter, Thread, Bluetooth Mesh, 2.4 GHz 802.11b/g/n, BLE 5.0

[Confirmed] — https://en.bouffalolab.com/product/, https://www.matteralpha.com/bouffalolab

Verified prefixes (all MA-L, Hong Kong Bouffalo Lab Limited)

18:B9:05, 24:94:94, B4:E8:42 [Confirmed] — IEEE MA-L; https://hwaddress.com/company/hong-kong-bouffalo-lab-limited/

Company status

Live [Confirmed] — https://www.ltddir.com/companies/hong-kong-bouffalo-lab-limited/

Security context

no public CVEs or targeted disclosures found specifically for Bouffalo Lab chips as of June 2026; vendor cites "multiple security mechanisms" and Matter compliance; active open-source ecosystem (NuttX, Zephyr, community toolchains) raises visibility but no documented exploits [Likely — absence of evidence, not evidence of absence] — https://en.bouffalolab.com/product/?type=detail&id=1, https://nuttx.apache.org/docs/latest/platforms/risc-v/bl602/index.html

Related entity

Bouffalo Lab (Nanjing) Co., Ltd. holds ~22 additional MA-L prefixes under a separate registrant name [Confirmed] — IEEE MA-L

Analyst note

a Bouffalo Lab OUI most often identifies a third-party OEM smart-home device built around a Bouffalo SoC, not a Bouffalo-branded product; treat it as a silicon-vendor signal for IoT asset classification.