MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixC8:8E:D1:C0:00:00 /28
Vendor address6F,Building12,399 Keyuan Road, Zhangjiang Hi-Tech Park,shanghai,china Shanghai Shanghai CN 201203
Country🇨🇳 China
RegisteredOct 16, 2015
Block rangeC8:8E:D1:C0:00:00– C8:8E:D1:CF: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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C8:8E:D1:B0:00:00 /28
Advanced Micro Controls Inc.
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C8:8E:D1:D0:00:00 /28
PHOENIX ENGINEERING CORP.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shanghai Bwave Technology Co.,Ltd holds 1 registered blocks in the IEEE registry, ranking #25,892 of 33,427 organizations by block count.