MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix7C:E4:A1:80:00:00 /28
Vendor address1307, building A4, workshop 2, LiLang International Jewelry Industrial Park, 31 Bulan Road, xialilang community, Nanwan street, Longgang District Shenzhen Guangdong CN 518112
Country🇨🇳 China
RegisteredJul 23, 2026
Block range7C:E4:A1:80:00:00– 7C:E4:A1:8F: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 Liandian Communication Technology Co.LTD holds 6 registered blocks in the IEEE registry, ranking #529 of 33,421 organizations by block count.
Other blocks registered to Shenzhen Liandian Communication Technology Co.LTD