MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix8C:1F:64:58:00:00 /36
Vendor address75-5 Imojiya Chikuma Nagano JP 3870015
Country🇯🇵 Japan
RegisteredApr 19, 2024
Block range8C:1F:64:58:00:00– 8C:1F:64:58:0F: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:64:57:E0:00 /36
Guoqing (shangdong) Information Technology Co.,Ltd
Next
8C:1F:64:58:10:00 /36
SpectraDynamics, Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Sakura Seiki Co.,Ltd. holds 5 registered blocks in the IEEE registry, ranking #629 of 33,421 organizations by block count.