MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix80:77:86:30:00:00 /28
Vendor address2106, 21st Floor, Building D, Tsinghua Science Park, Keji 2nd Road, Hi-Tech Zone xi'an shaanxi CN 710000
Country🇨🇳 China
RegisteredDec 31, 2025
Block range80:77:86:30:00:00– 80:77:86:3F: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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80:77:86:20:00:00 /28
Wintec Co., Ltd
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80:77:86:40:00:00 /28
Realtime Biometrics India (P) limited
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Demeas holds 1 registered blocks in the IEEE registry, ranking #10,106 of 33,427 organizations by block count.