MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix8C:1F:64:9A:00:00 /36
Vendor addressMonzastraße 4 Langen Hesse DE 63225
Country🇩🇪 Germany
RegisteredMar 19, 2026
Block range8C:1F:64:9A:00:00– 8C:1F:64:9A:0F: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:64:99:E0:00 /36
EIDOS s.r.l.
Next
8C:1F:64:9A:10:00 /36
Pacific Software Development Co., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
NEOX Networks holds 1 registered blocks in the IEEE registry, ranking #20,879 of 33,427 organizations by block count.