MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix70:B3:D5:CD:20:00 /36
Vendor addressHelmholtzstr. 1 Stutensee DE 76297
Country🇩🇪 Germany
RegisteredJul 3, 2016
Block range70:B3:D5:CD:20:00– 70:B3:D5:CD:2F:FF
Address capacity4,096
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
- Jul 3, 2016 – May 4, 2022 HBH Microwave GmbH name changed
- May 4, 2022 – present TRUMPF Huttinger GmbH + Co. KG,
Example addresses in this block
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
TRUMPF Huttinger GmbH + Co. KG, holds 1 registered blocks in the IEEE registry, ranking #30,598 of 33,427 organizations by block count.