MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix8C:1F:64:5F:50:00 /36
Vendor address166, Osan-ro, Osan-myeon Iksan-si Jeollabuk-do KR 54670
Country🇰🇷 South Korea
RegisteredOct 30, 2021
Block range8C:1F:64:5F:50:00– 8C:1F:64:5F:5F: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:64:5F:40:00 /36
Jiangsu Yi Rong Mstar Technology Ltd.
Next
8C:1F:64:5F:60:00 /36
Forward Edge.AI
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
HongSeok Ltd. holds 3 registered blocks in the IEEE registry, ranking #1,090 of 33,421 organizations by block count.
Other blocks registered to HongSeok Ltd.