MAC address vendor

Beijing Roborock Technology Co., Ltd. — robot-vacuum maker (MA-L)

Primary prefix
B0:4A:39
Block
MA-L
Status
Active

Summary

// what this is
Beijing Roborock Technology is registered to MAC prefix B0:4A:39 and 1 more in the IEEE OUI database. When a device's MAC address begins with B0:4A:39, that block was registered by Beijing Roborock Technology — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
Roborock OUI = cloud-connected robot vacuum with floor-mapping; classify as IoT, segment, keep firmware current. MAC alone won't reveal model or patch level.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High

Beijing Roborock Technology Co., Ltd. (brand: Roborock) is a Beijing-based consumer-IoT manufacturer best known for WiFi-connected robot vacuum cleaners and cordless stick vacuums that use LiDAR or camera navigation and lean on a smartphone app plus cloud back end for control, floor-map storage, and firmware updates. The company was founded in July 2014, took Xiaomi investment that September to join Xiaomi's ecological chain, and listed on the Shanghai STAR market in February 2020; its products sell in 40-plus countries. In the IEEE registry it holds MA-L (24-bit OUI) blocks registered to the full company name at a Haidian District, Beijing address. The IEEE registry confirms two MA-L prefixes — B0:4A:39 and 24:9E:7D — and a third-party aggregator (maclookup.app) also lists C8:C9:92; treat the count as a snapshot, not an IEEE total. A Roborock OUI on a network reliably flags a Roborock smart-home appliance rather than a general-purpose computer, which is useful for asset classification but also worth noting from a privacy and segmentation standpoint: these are mapping-capable, cloud-connected devices. Older models had documented security history — a 2021 Tuya IoT-cloud weak-RNG issue (patched via firmware that September) and Check Point Research RCE work that reached the camera feed and LiDAR floor maps — so segmenting and patching them is prudent. IEEE publishes no registration date for OUI blocks, so any "date registered" seen on third-party tools is a database artifact, not a first-party fact, and is left null here.

IEEE assignment
Beijing Roborock Technology Co., Ltd., MA-L blocks, Haidian District, Beijing, CN [Confirmed] — IEEE the IEEE MA-L registry (registry class MA-L)
Registry / block size
MA-L (24-bit OUI; ~16.7M addresses per block) [Confirmed] — IEEE the IEEE MA-L registry; no MA-M / MA-S (oui36) entries found for this org
Verified prefixes (IEEE registry)
B0:4A:39, 24:9E:7D [Confirmed] — IEEE the IEEE MA-L registry
Additional prefix (third-party only)
C8:C9:92 — listed by maclookup.app but not corroborated in the supplied IEEE the IEEE MA-L registry extract [Likely] — https://maclookup.app/vendors/beijing-roborock-technology-co-ltd
HQ / country
Floor 6, Building C, Kangjian Baosheng Plaza, No. 8 Heiquan Road, Haidian District, Beijing 100085, CN [Confirmed] — IEEE the IEEE MA-L registry address
Registration date
Unknown — IEEE publishes NO assignment date for OUI blocks; third-party "date registered" values (e.g. B0:4A:39 shown as 2020-08-14) are database artifacts, not IEEE facts [Confirmed null] — https://standards.ieee.org/faqs/regauth/
Company status / founding
active; founded July 2014, Beijing; Xiaomi-invested Sept 2014; STAR-market IPO Feb 2020; sells in 40+ countries [Confirmed] — https://us.roborock.com/pages/about-us, https://en.wikipedia.org/wiki/Roborock, https://stockanalysis.com/quote/sha/688169/company/
Device types
robot vacuum cleaners, cordless stick vacuums, related smart-home devices; WiFi + LiDAR/camera navigation, cloud/app connectivity [Confirmed] — https://us.roborock.com/pages/about-us
Security context
(1) 2021 Tuya IoT-cloud weak random-number-generator issue affecting S6 / S5 Max / S6 Pure / S6 MaxV / S4 — exposed cleaning data, maps, settings; patched via firmware Sept 2021. (2) Check Point Research RCE reaching camera feed + LiDAR map exfiltration ($30K bounty; no CVE found in sources). (3) AV-Test noted partially unencrypted UDP for external comms. Roborock holds TÜV Rheinland Protected Privacy IoT Service certification. [Confirmed] — https://global.roborock.com/pages/disclosure-security-vulnerability-on-tuya-iot-cloud, https://www.av-test.org/en/news/robot-vacuums-undergo-a-security-check-trustworthy-helpers-around-the-house-or-chatty-cleaning-appliances/
Privacy context
LiDAR/camera floor mapping; company states captured images are deleted after processing and not uploaded; supports Alexa/Siri/Google Assistant; managed via app [Likely] — https://en.wikipedia.org/wiki/Roborock, https://vacuumwars.com/are-robot-vacuums-spying-on-you/
Standards membership
CSA-IoT (Connectivity Standards Alliance) member, relevant to Matter/smart-home interoperability [Confirmed] — https://csa-iot.org/member/beijing-roborock-technology-co-ltd/
Website
https://roborock.com (global); https://us.roborock.com (US) [Confirmed] — https://us.roborock.com/pages/about-us
Analyst note
A Roborock OUI identifies a cloud-connected, mapping-capable robot vacuum, not a general computer. Useful for IoT asset classification; given the documented security history on older models, segment these devices and keep firmware current. MAC alone won't reveal model or patch level.
[ 02 ] — OUI prefixes

Assignments by IEEE.

2
// registered prefixes2
  1. B0:4A:39MA-L
  2. 24:9E:7DMA-L
[ 03 ] — More from Beijing Roborock Technology Co., Ltd.

Related entries.

1 entry
// More from Beijing Roborock Technology Co., Ltd. 1
  1. Beijing Roborock Technology Co., Ltd. vendor
[ 04 ] — Related

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