MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixF8:B5:68:20:00:00 /28
Vendor addressRoom20A, 20th Floor, HSAE Technology Building, Nanshan District, Shenzhen CN 518000
Country🇨🇳 China
RegisteredOct 22, 2017
Block rangeF8:B5:68:20:00:00– F8:B5:68:2F: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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F8:B5:68:10:00:00 /28
PT. Eyro Digital Teknologi
Next
F8:B5:68:30:00:00 /28
Dongwoo Engineering Co.,Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shenzhen New-Bund Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #26,746 of 33,427 organizations by block count.