MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:40:89:00:00:00 /24
Vendor addressFACTORY NO.4, 515 KAMINAKAMIZO JP
Country🇯🇵 Japan
RegisteredSep 8, 2000
Block range00:40:89:00:00:00– 00:40:89: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
Previous
00:40:88:00:00:00 /24
MOBIUS TECHNOLOGIES, INC.
Next
00:40:8A:00:00:00 /24
TPS TELEPROCESSING SYS. GMBH
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
MEIDENSHA CORPORATION holds 1 registered blocks in the IEEE registry, ranking #19,541 of 33,427 organizations by block count.