MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixE8:B4:70:50:00:00 /28
Vendor addressVia Dodiciville 8 Bolzano bz IT 39100
Country🇮🇹 Italy
RegisteredFeb 29, 2020
Block rangeE8:B4:70:50:00:00– E8:B4:70:5F: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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E8:B4:70:40:00:00 /28
YAWATA ELECTRIC INDUSTRIAL CO.,LTD.
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E8:B4:70:60:00:00 /28
Elcoma
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Alperia Fiber srl holds 1 registered blocks in the IEEE registry, ranking #4,772 of 33,421 organizations by block count.