AUMOVIO Technologies Romania S.R.L. — 2 prefixes (MA-L)

A MAC address starting with 40:85:56 or E4:12:26 belongs to AUMOVIO Technologies Romania S.R.L., the Timisoara plant of AUMOVIO's automotive supply chain, and most plausibly marks embedded automotive hardware rather than office or consumer IT equipment.

The company is a substantial, verifiable manufacturer, not a bare OUI registration: the Romanian company registry lists CUI 12817173, with a registered office at Str Siemens no.1, Timisoara, matching the OUI address exactly. Its corporate lineage runs from Siemens VDO Automotive SRL through Continental Automotive Romania SRL to today's AUMOVIO Technologies Romania S.R.L., established 2000-03-16, with roughly 8,304 employees as of 2025 under CAEN code 2931 (manufacture of electrical/electronic equipment for motor vehicles).

AUMOVIO's parent-level product lines span industrial radar sensors, ADAS and crash-detection systems, braking and chassis components (including motorsport ABS), body/comfort and cockpit/infotainment systems, and network/connectivity or E/E-architecture solutions. No source ties a specific device model to the Timisoara plant or to either prefix by name, so plant-level device attribution stays Unknown; the two independent OUI assignments themselves corroborate an active manufacturing operation at that address.

A legally distinct sister company, AUMOVIO Systems Romania S.R.L. (prefix D4:00:CA, registered in Sibiu), must not be conflated with this Timisoara-registered entity. AUMOVIO runs a group-wide Product Security Incident Response Team and Product Vulnerability Disclosure Program under ISO/SAE 21434; no CVE is recorded against AUMOVIO Technologies Romania or its predecessor names (Continental Automotive Romania, Siemens VDO Automotive Romania) as of an August 2026 search.

IEEE assignment

2 prefixes → AUMOVIO Technologies Romania S.R.L., registered Timisoara, Romania [Confirmed] — the IEEE MA-L registry 408556, the IEEE MA-L registry E41226

Registry / block size

MA-L (24-bit OUI); 2 IEEE prefixes [Confirmed] — the IEEE MA-L registry 408556, the IEEE MA-L registry E41226

Verified prefixes (both MA-L, same entity and address)

40:85:56, E4:12:26 [Confirmed] — the IEEE MA-L registry 408556, the IEEE MA-L registry E41226

HQ / country

Str Siemens no.1, 300701 Timisoara, Romania (RO) [Confirmed] — the IEEE MA-L registry 408556

MA-M / MA-S registry entries

none found for this entity [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry

Company status

active; CUI 12817173, registered office matches OUI address exactly [Confirmed] — https://termene.ro/firma/12817173-AUMOVIO-TECHNOLOGIES-ROMANIA-SRL

Company background / lineage

Siemens VDO Automotive SRL -> Continental Automotive Romania SRL -> AUMOVIO Technologies Romania S.R.L.; established 2000-03-16; ~8,304 employees (2025); CAEN 2931 [Confirmed] — https://lege5.ro/firma/continental-automotive-romania-srl-12817173, https://www.risco.ro/en/verifica-firma/aumovio-technologies-romania-cui-12817173

Device types

parent-level AUMOVIO product lines (radar sensors, ADAS/crash detection, braking/chassis incl. motorsport ABS, body/comfort, cockpit/infotainment, connectivity/E-E architecture); no plant- or prefix-specific device model identified [Likely] — https://engineering-solutions.aumovio.com/company/

Industry

automotive Tier-1 supplier / electrical-electronic vehicle equipment manufacturing (CAEN 2931) [Confirmed] — https://www.risco.ro/en/verifica-firma/aumovio-technologies-romania-cui-12817173

Related registrant (distinct entity, NOT this vendor)

AUMOVIO Systems Romania S.R.L. (prefix D4:00:CA, Sibiu) [Confirmed] — the IEEE MA-L registry

Assignment / registration date

Unknown — IEEE's the IEEE MA-L registry publishes no assignment/registration date column for either prefix; no date fabricated [Unknown] — the IEEE MA-L registry

Security context

AUMOVIO runs a group-wide PSIRT (psirt@aumovio.com), Product Vulnerability Disclosure Program, and ISO/SAE 21434 cybersecurity management; no CVE is recorded against AUMOVIO Technologies Romania or predecessor names as of an August 2026 search [Likely — absence-of-evidence, not refutation] — https://www.aumovio.com/en/company/corporate-governance/product-vulnerability-disclosure-program.html, https://www.aumovio.com/en/solutions/cybersecurity.html

Analyst note

both prefixes are full MA-L blocks owned outright by this substantial, verifiable entity — not an IEEE-held shared base — so traffic from either prefix reliably indicates AUMOVIO Technologies Romania hardware, most plausibly automotive embedded equipment rather than IT infrastructure.