MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix40:85:56:00:00:00 /24
Vendor addressStr Siemens no.1, 300701 Timisoara, Romania Timisoara RO 300701
Country🇷🇴 Romania
RegisteredJun 26, 2024
Block range40:85:56:00:00:00– 40:85:56:FF:FF:FF
Address capacity16,777,216
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority
Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.
Curious how a prefix like this turns into a full address? See how MAC addresses are structured →
Ownership timeline
- Jun 26, 2024 – Dec 13, 2025 Continental Automotive Romania SLR name changed
- Dec 13, 2025 – present AUMOVIO Technologies Romania S.R.L.
Example addresses in this block
Where this block sits
AUMOVIO Technologies Romania S.R.L. holds 2 registered blocks in the IEEE registry, ranking #1,560 of 33,427 organizations by block count.
Other blocks registered to AUMOVIO Technologies Romania S.R.L.