MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixC8:63:14:10:00:00 /28
Vendor address4-14-26, Shimo-Muneoka Shiki Saitama JP 3530003
Country🇯🇵 Japan
RegisteredJan 17, 2019
Block rangeC8:63:14:10:00:00– C8:63:14:1F:FF:FF
Address capacity1,048,576
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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C8:63:14:00:00:00 /28
Western Reserve Controls, Inc.
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C8:63:14:20:00:00 /28
Tymphany Acoustic Technology (Huizhou) Co., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Autonics Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #5,973 of 33,421 organizations by block count.