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:F1:0A:90:00:00 /28
Vendor address130-1 Re, Awagasaki-machi Kanazawa-Shi Ishikawa-Ken JP 920-0226
Country🇯🇵 Japan
Block rangeC8:F1:0A:90:00:00– C8:F1:0A:9F: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:F1:0A:80:00:00 /28
BWELL TECHNOLOGY INTERNATIONAL LIMITED
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C8:F1:0A:A0:00:00 /28
FSG Fernsteuergeräte Mess- und Regeltechnik GmbH
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
dss Co,. Ltd holds 1 registered blocks in the IEEE registry, ranking #10,842 of 33,421 organizations by block count.