MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix98:3B:8A:00:00:00 /24
Vendor addressMandai Mita Building 2F,3-2-3 Mita, Minato-ku Tokyo JP 108-0073
Country🇯🇵 Japan
RegisteredMar 12, 2026
Block range98:3B:8A:00:00:00– 98:3B:8A: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.
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Example addresses in this block
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Sekisui Jushi CAP-AI System Co.,Ltd. holds 1 registered blocks in the IEEE registry, ranking #25,581 of 33,427 organizations by block count.