MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:07:52:00:00:00 /24
Vendor address321 Shinshukushinden, Showa-Machi, JP 344-0196
Country🇯🇵 Japan
RegisteredOct 24, 2001
Block range00:07:52:00:00:00– 00:07:52: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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00:07:51:00:00:00 /24
m-u-t AG
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00:07:53:00:00:00 /24
Beijing Qxcomm Technology Co., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Rhythm Watch Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #24,569 of 33,421 organizations by block count.