MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixAC:86:D1:10:00:00 /28
Vendor addressB722, 4/F, Building 14, Cuiwei Zhongli, Haidian District, Beijing, China beijing 选择州 CN 100000
Country🇨🇳 China
RegisteredJul 16, 2024
Block rangeAC:86:D1:10:00:00– AC:86:D1:1F: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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AC:86:D1:00:00:00 /28
Advanced Rugged System Co., LTD
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AC:86:D1:20:00:00 /28
Hamsa India
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Beijing Fantasy Mofang Technology Co.,Ltd holds 1 registered blocks in the IEEE registry, ranking #6,540 of 33,421 organizations by block count.