MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix64:31:39:50:00:00 /28
Vendor address2nd Floor, Building A7, Shenzhen Low Carbon Technology Demonstration Park, Silicon Valley Power, Guiyue Road, Guanlan Street, Longhua District, Shenzhen, China ShenZhen CN 518100
Country🇨🇳 China
RegisteredSep 8, 2019
Block range64:31:39:50:00:00– 64:31:39:5F: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.
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Example addresses in this block
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Hunan Voc Acoustics Technology Co., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shenzhen He&e Technology Co.,Ltd. holds 1 registered blocks in the IEEE registry, ranking #26,488 of 33,421 organizations by block count.