MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixD8:86:0B:70:00:00 /28
Vendor addressJosef-Grünbeck-Str. 1 Hoechstaedt a.d. Donau DE 89420
Country🇩🇪 Germany
RegisteredNov 8, 2018
Block rangeD8:86:0B:70:00:00– D8:86:0B:7F:FF:FF
Address capacity1,048,576
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
D8:86:0B:60:00:00 /28
SCANMATIK
Next
D8:86:0B:80:00:00 /28
VRINDA NANO TECHNOLOGIES PVT LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Grünbeck Wasseraufbereitung GmbH holds 1 registered blocks in the IEEE registry, ranking #13,893 of 33,427 organizations by block count.