MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix74:33:36:A0:00:00 /28
Vendor addressArea B, Floor 101-2, Floor 3, Floor 5 and Floor 6 of area B, Building No. 8, Guixiang Community Plaza Road, Guanlan Street, Longhua District, Shenzhen. Shenzhen Guangdong CN 518000
Country🇨🇳 China
RegisteredOct 10, 2025
Block range74:33:36:A0:00:00– 74:33:36:AF: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.
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Example addresses in this block
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shenzhen Jooan Technology Co., Ltd holds 10 registered blocks in the IEEE registry, ranking #321 of 33,421 organizations by block count.
Other blocks registered to Shenzhen Jooan Technology Co., Ltd