MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix40:2C:76:60:00:00 /28
Vendor address136#, Gaopu Road, Tianhe District Guangzhou Guangdong CN 510663
Country🇨🇳 China
RegisteredOct 30, 2019
Block range40:2C:76:60:00:00– 40:2C:76:6F: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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40:2C:76:50:00:00 /28
Baumer Bourdon-Haenni
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40:2C:76:70:00:00 /28
Zhejiang Guoli Security Technology Co., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Guangzhou LANGO Electronics Technology Co., Ltd. holds 4 registered blocks in the IEEE registry, ranking #738 of 33,421 organizations by block count.
Other blocks registered to Guangzhou LANGO Electronics Technology Co., Ltd.