BSH Hausgeräte GmbH — 7 prefixes (MA-L)

BSH Hausgeräte GmbH holds 7 distinct MA-L (24-bit) OUI blocks in the IEEE registry, all registered to the same Regensburg, Bayern manufacturing site (postcode 93059), split only by building string — "Im Gewerbepark B35" and "Im Gewerbepark B10". The seven prefixes are 68:A4:0E, 94:27:70, 38:B4:D3, E4:67:A6, C8:D7:78, 40:0A:E7, and 74:5D:43. BSH is a home-appliance maker headquartered in Munich and a wholly-owned subsidiary of the Bosch Group; it manufactures and markets under the Bosch, Siemens, Gaggenau, Neff, Thermador, Balay, Constructa, Pitsos, Profilo, and Junker brands. Devices seen on these OUIs are almost always connected major appliances — ovens, dishwashers, washing machines, dryers, refrigerators, hobs/cooktops, and coffee machines — running BSH's "Home Connect" IoT platform, which has networked BSH appliances since 2014 and is shared across the brand family. A common consolidation trap to avoid: "BSH Electrical Appliances (Jiangsu) Co., Ltd." (Nanjing, CN) holds a separate MA-L block (48:26:4C) under a distinct legal-entity name and should NOT be folded into this vendor's prefix list without an explicit editorial policy — it is a related but legally distinct registrant, the group's China manufacturing arm. Registration dates are deliberately omitted: IEEE publishes no assignment date for OUI/MA-L blocks, and per-prefix "date registered" values shown on third-party lookup tools are database artifacts, not IEEE facts.

IEEE assignment

7 prefixes → BSH Hausgeräte GmbH, registered Regensburg, Bayern, DE 93059 [Confirmed] — IEEE MA-L

Registry / block size

MA-L (24-bit OUI); 7 IEEE prefixes [Confirmed] — IEEE the IEEE MA-L registry, Wireshark the Wireshark manufacturer database DB (the Wireshark manufacturer database)

Verified prefixes (all MA-L, BSH Hausgeräte GmbH)

68:A4:0E, 94:27:70, 38:B4:D3, E4:67:A6, C8:D7:78, 40:0A:E7, 74:5D:43 [Confirmed] — IEEE the IEEE MA-L registry

Registry addresses

"Im Gewerbepark B35, Regensburg, Bayern, DE 93059" (68:A4:0E, 94:27:70, E4:67:A6, 40:0A:E7) and "Im Gewerbepark B10, Regensburg, DE 93059" (38:B4:D3, C8:D7:78, 74:5D:43) [Confirmed] — IEEE the IEEE MA-L registry

HQ / country

Munich, Germany (corporate HQ); registry addresses are the Regensburg, DE site [Confirmed] — bsh-group.com/legal-notice/, IEEE the IEEE MA-L registry

Company status

active [Confirmed] — bsh-group.com

Parent / ownership

wholly-owned subsidiary of the Bosch Group [Confirmed] — bsh-group.com

Brands

Bosch, Siemens, Gaggenau, Neff, Thermador, Balay, Constructa, Pitsos, Profilo, Junker [Confirmed] — bsh-group.com

Device types

connected major appliances — ovens, dishwashers, washing machines, dryers, refrigerators, hobs/cooktops, coffee machines [Likely] — bsh-group.com Home Connect page; corroborated by a 2026 Home Assistant community thread crowdsourcing Home Connect DHCP-hostname/OUI mappings

IoT platform

"Home Connect" (networked BSH appliances since 2014, shared across the brand family; requires WPA/WPA2 Wi-Fi to register an appliance) [Confirmed] — home-connect.com, siemens-home.bsh-group.com FAQ

Security context

BSH/Home Connect runs formal per-brand vulnerability-reporting/PSIRT pages; no specific CVE surfaced in a light web pass — record as Unknown/not-found, not "no CVEs exist" (no dedicated NVD/MITRE search was run)

[Likely] — home-connect.com/global/meta-pages/reporting-vulnerabilities, bosch-home.com/imprint/report-a-vulnerability

Related but distinct entity

"BSH Electrical Appliances (Jiangsu) Co., Ltd." (Nanjing, Jiangsu, CN) holds separate MA-L block 48:26:4C — a legally distinct registrant (China manufacturing arm); do NOT merge into this vendor [Confirmed] — IEEE the IEEE MA-L registry

Registration dates

Unknown — IEEE publishes NO assignment/registration date for OUI/MA-L blocks; third-party "date registered" values (e.g. maclookup.app) are database artifacts, not IEEE facts, and must not be recorded as authoritative

[Confirmed] — IEEE the IEEE MA-L registry (no date column), maclookup.app (artifact source)

IANA Reference

blank / not applicable — no IANA RFC reference applies to a vendor OUI record [Confirmed] — iana.org/assignments/ethernet-numbers

MA-M / MA-S

none found — no BSH rows in the IEEE MA-M registry or the IEEE MA-S registry [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry

Analyst note

a BSH OUI on a globally-administered address identifies a genuine BSH-brand connected appliance; treat these as consumer IoT major appliances (Home Connect) rather than generic IT gear when classifying a home network.