MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:0A:B1:00:00:00 /24
Vendor addressBYGS Shinjyuku Bldg. 5F Shinjuku-ku Tokyo JP 162-0022
Country🇯🇵 Japan
RegisteredAug 3, 2002
Block range00:0A:B1:00:00:00– 00:0A:B1: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
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00:0A:B0:00:00:00 /24
LOYTEC electronics GmbH
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00:0A:B2:00:00:00 /24
Fresnel Wireless Systems
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
GENETEC Corporation holds 1 registered blocks in the IEEE registry, ranking #13,486 of 33,427 organizations by block count.