MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix50:A4:D0:B0:00:00 /28
Vendor address11 Xianghe Street, Xinmin, Changan Dongguan Guangdong CN 523879
Country🇨🇳 China
RegisteredOct 30, 2016
Block range50:A4:D0:B0:00:00– 50:A4:D0: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
Previous
50:A4:D0:A0:00:00 /28
Changsha SinoCare, Inc
Next
50:A4:D0:C0:00:00 /28
Beijing YangLian Networks Technology co., LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
ZHENG DIAN ELECTRONICS LIMITED holds 1 registered blocks in the IEEE registry, ranking #33,258 of 33,427 organizations by block count.