MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix8C:1F:64:C3:60:00 /36
Vendor address87, Wanjusandan 5-ro, Bongdong-eup Wanju_gun Jeonbuk-do KR 55322
Country🇰🇷 South Korea
RegisteredMay 31, 2025
Block range8C:1F:64:C3:60:00– 8C:1F:64:C3:6F: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
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8C:1F:64:C3:50:00 /36
Peter Huber Kaeltemaschinenbau SE
Next
8C:1F:64:C3:80:00 /36
ECO-ADAPT
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
ODTech Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #21,886 of 33,427 organizations by block count.