MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix8C:1F:64:50:80:00 /36
Vendor addressKaerntner Strasse 355B/1.OG Graz AT 8054
Country🇦🇹 Austria
RegisteredAug 18, 2025
Block range8C:1F:64:50:80:00– 8C:1F:64:50:8F: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 →
Example addresses in this block
Where this block sits
Previous
8C:1F:64:50:70:00 /36
IDNEO TECHNOLOGIES,S.A.U.
Next
8C:1F:64:50:90:00 /36
Season Electronics Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Kite Rise Technologies GmbH holds 1 registered blocks in the IEEE registry, ranking #17,711 of 33,427 organizations by block count.