MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix7C:CB:E2:B0:00:00 /28
Vendor address3rd Floor, Jinyanlong Building, Xisanqi Bridge, Haidian District, Beijing 100096, China Beijing Beijing CN 100096
Country🇨🇳 China
RegisteredAug 28, 2016
Block range7C:CB:E2:B0:00:00– 7C:CB:E2:BF: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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7C:CB:E2:A0:00:00 /28
Shanghai Institute of Applied Physics, Chinese Academy of Sciences
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7C:CB:E2:C0:00:00 /28
mirakonta s.l.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Easy Broadband Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #11,084 of 33,427 organizations by block count.