MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix70:31:87:00:00:00 /24
Vendor addressÄußere Zwickauer Straße 8 Zwickau DE 08064
Country🇩🇪 Germany
RegisteredMay 24, 2011
Block range70:31:87:00:00:00– 70:31:87: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.
ACX GmbH holds 1 registered blocks in the IEEE registry, ranking #4,024 of 33,421 organizations by block count.