MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixB4:C8:10:00:00:00 /24
Vendor addressVia Consolare Rimini-San Marino, 11 Rimini IT 47923
Country🇮🇹 Italy
RegisteredMay 6, 2010
Block rangeB4:C8:10:00:00:00– B4:C8:10: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
- May 6, 2010 – Apr 8, 2021 UMPI Elettronica name changed
- Apr 8, 2021 – present Umpi srl
Example addresses in this block
Where this block sits
Umpi srl holds 1 registered blocks in the IEEE registry, ranking #30,884 of 33,427 organizations by block count.