MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix44:D5:F2:90:00:00 /28
Vendor address17F, Building 3, China Science and Technology Development Park, No. 009, 1st South Gaoxin Road, Nanshan District Shenzhen Guangdong CN 518000
Country🇨🇳 China
RegisteredMay 17, 2019
Block range44:D5:F2:90:00:00– 44:D5:F2:9F: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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44:D5:F2:80:00:00 /28
CETC Avionics.L td
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44:D5:F2:A0:00:00 /28
SYS TEC electronic GmbH
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Auctus Technologies Co.,Ltd. holds 1 registered blocks in the IEEE registry, ranking #5,841 of 33,421 organizations by block count.