MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixEC:1A:C3:00:00:00 /24
Vendor address4F, Plant 6, 1F-6/F, Block 7, YuAn Zone, Gaofeng Community, Dalang Street, Longhua District Shenzhen Guangdong CN 518109
Country🇨🇳 China
RegisteredNov 25, 2025
Block rangeEC:1A:C3:00:00:00– EC:1A:C3: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
Where this block sits
Ugreen Group Limited holds 4 registered blocks in the IEEE registry, ranking #870 of 33,427 organizations by block count.
Other blocks registered to Ugreen Group Limited