Qiao Information Technology (Zhengzhou) Co., Ltd.
MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix18:B1:85:00:00:00 /24
Vendor addressRoom 405-1, Area A, 4th Floor, Wisdom Island Building, No.6, Zhongdao East, Zhengdong New District, Zhengzhou Henan CN 450000
Country🇨🇳 China
Block range18:B1:85:00:00:00– 18:B1:85: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