MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix90:15:64:40:00:00 /28
Vendor addressStoczniowcow 3 Krakow PL 30-709
Country🇵🇱 Poland
RegisteredFeb 9, 2024
Block range90:15:64:40:00:00– 90:15:64:4F: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
90:15:64:30:00:00 /28
Clinton Electronics Corporation
Next
90:15:64:50:00:00 /28
Relectrify Pty Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Kontakt Micro-Location Sp z o.o. holds 3 registered blocks in the IEEE registry, ranking #1,142 of 33,427 organizations by block count.
Other blocks registered to Kontakt Micro-Location Sp z o.o.