Shenzhen Wintop Photoelectric Technology Co., Ltd MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixDC:E1:AD:00:00:00 /24
Vendor address6th Floor, 1st Building, Zone 3, South Area, Zhongguan& Honghualing Industrial Zone, No. 1213, Liuxian Avenue, Taoyuan Street, Nanshan District, Shenzhen, China Shenzhen Guangdong CN 518054
Block rangeDC:E1:AD:00:00:00– DC:E1:AD: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