MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:04:67:00:00:00 /24
Vendor address88 Youkeyuan Road, 430074 430074 CN P.R.CHINA
Country🇨🇳 China
RegisteredNov 23, 2000
Block range00:04:67:00:00:00– 00:04:67: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 →
Ownership timeline
- Nov 23, 2000 – Jun 5, 2002 Wuhan Research Institute name changedaddress changedcountry changed
- Jun 5, 2002 – present Wuhan Research Institute of MII
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.
Wuhan Research Institute of MII holds 1 registered blocks in the IEEE registry, ranking #32,524 of 33,421 organizations by block count.