MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix28:AC:67:00:00:00 /24
Vendor addressCUPA S.ANIELLO, 112 NAPOLI Napoli IT 80146
Country🇮🇹 Italy
RegisteredApr 30, 2016
Block range28:AC:67:00:00:00– 28:AC: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 →
Example addresses in this block
Where this block sits
Mach Power, Rappresentanze Internazionali s.r.l. holds 1 registered blocks in the IEEE registry, ranking #19,014 of 33,427 organizations by block count.