MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:18:E4:00:00:00 /24
Vendor address3/FL.Industry zone,Fuxinlin,Hangcheng,Xixiang,Baoan Shenzhen Guangdong CN 518126
Country🇨🇳 China
RegisteredJul 1, 2006
Block range00:18:E4:00:00:00– 00:18:E4: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
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
YIGUANG holds 1 registered blocks in the IEEE registry, ranking #32,930 of 33,421 organizations by block count.