MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix58:23:BC:50:00:00 /28
Vendor addressRoom 402, Building 22, Chentian Industrial Zone, Baomin 2nd Road Shenzhen, Guangdong Province. CN 518000
Country🇨🇳 China
RegisteredDec 31, 2024
Block range58:23:BC:50:00:00– 58:23:BC:5F: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
Previous
58:23:BC:40:00:00 /28
Shanghai Kanghai Information System CO.,LTD.
Next
58:23:BC:60:00:00 /28
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The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shenzhen Zhixuan Network Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #27,110 of 33,427 organizations by block count.