Huami (Shenzhen) Information Technology Co., Ltd
MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix50:7C:90:00:00:00 /24
Vendor address401, Building B, Phase II, Science and Technology Building, No. 1057 Nanhai Avenue, Shekou, Yanshan Community, Zhaoshang Street, Nanshan District Shenzhen CN 51867
Country🇨🇳 China
Block range50:7C:90:00:00:00– 50:7C:90:FF:FF:FF
Address capacity16,777,216
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