MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix8C:5C:A1:00:00:00 /24
Vendor address3-17-5 ShinYokohama Kouhoku-Ku Yokohama Kanagawa JP 222-0033
Country🇯🇵 Japan
RegisteredApr 9, 2011
Block range8C:5C:A1:00:00:00– 8C:5C:A1:FF:FF:FF
Address capacity16,777,216
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
d-broad,INC holds 1 registered blocks in the IEEE registry, ranking #9,650 of 33,427 organizations by block count.