MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixD0:47:C1:00:00:00 /24
Vendor addressHofstrasse 93 Wetzikon Zuerich CH 8620
Country🇨🇠Switzerland
RegisteredFeb 18, 2021
Block rangeD0:47:C1:00:00:00– D0:47:C1: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
Elma Electronic AG holds 1 registered blocks in the IEEE registry, ranking #11,535 of 33,421 organizations by block count.