MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixD0:C8:57:D0:00:00 /28
Vendor addressNational Intelligent Speech High-tech Industrialization Base, No. 666, Wangjiang Road West, Hefei An hui CN 230088
Country🇨🇳 China
RegisteredMar 23, 2019
Block rangeD0:C8:57:D0:00:00– D0:C8:57: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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D0:C8:57:C0:00:00 /28
Dante Security Inc.
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D0:C8:57:E0:00:00 /28
E-T-A Elektrotechnische Apparate GmbH
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
IFLYTEK CO.,LTD. holds 4 registered blocks in the IEEE registry, ranking #750 of 33,427 organizations by block count.
Other blocks registered to IFLYTEK CO.,LTD.