MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix34:B5:F3:D0:00:00 /28
Vendor addressThe 4th floor, Building No.4, Xiangshan South Road 105#, Shijingshan, Beijing, China BEIJING CN 100144
Country🇨🇳 China
RegisteredJul 22, 2025
Block range34:B5:F3:D0:00:00– 34:B5:F3:DF: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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34:B5:F3:C0:00:00 /28
Shenzhen Mifasuolla Smart Co.,Ltd
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34:B5:F3:E0:00:00 /28
Viettel Manufacturing Corporation One Member Limited Liability Company
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Digicom holds 1 registered blocks in the IEEE registry, ranking #10,317 of 33,421 organizations by block count.