MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix90:15:64:60:00:00 /28
Vendor address4-44-1, Nakasaiwai-cho, Saiwai-Ku Kawasaki Kanagawa JP 212-0012
Country🇯🇵 Japan
RegisteredFeb 1, 2024
Block range90:15:64:60:00:00– 90:15:64:6F: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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90:15:64:50:00:00 /28
Relectrify Pty Ltd
Next
90:15:64:70:00:00 /28
Hangzhou System Technology Co.,Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
final Inc. holds 2 registered blocks in the IEEE registry, ranking #2,033 of 33,421 organizations by block count.
Other blocks registered to final Inc.