MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixC0:83:59:60:00:00 /28
Vendor addressNo. 1703, Zhong An Sheng Ye Building, No. 168 Bei Yuan Road, Chaoyang District, Beijing Beijing Beijing CN 100101
Country🇨🇳 China
RegisteredMay 6, 2018
Block rangeC0:83:59:60:00:00– C0:83:59:6F: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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C0:83:59:50:00:00 /28
Viper Design, LLC
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C0:83:59:70:00:00 /28
Fuzhou Fdlinker Technology Co.,LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Beijing Cloud Fly Technology Development Co.Ltd holds 1 registered blocks in the IEEE registry, ranking #6,501 of 33,427 organizations by block count.