MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix80:43:5E:00:00:00 /24
Vendor address15245 Alton PkwySTE100 Irvine CA US 92618
Country🇺🇸 United States
RegisteredJul 7, 2026
Block range80:43:5E:00:00:00– 80:43:5E: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
Luminys Systems Corporation holds 2 registered blocks in the IEEE registry, ranking #2,454 of 33,427 organizations by block count.
Other blocks registered to Luminys Systems Corporation