SHENZHEN HUARUIAN TECHNOLOGY CO.,LTD
MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixDC:B1:31:00:00:00 /24
Vendor addressFloo2nd and 3rd floor, building A, Huixin Industrial Park, No.31 Yonghe Road, Heping community, Fuhai street, Bao'an District, Shenzhen, China Shenzhen Guangdong CN 518101
Country🇨🇳 China
Block rangeDC:B1:31:00:00:00– DC:B1:31: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