Exel s.r.l. unipersonale (A8:3F:A1:B0:00:00 /28)

Exel s.r.l. unipersonale MA-M

MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.

PrefixA8:3F:A1:B0:00:00 /28

Vendor addressvia di corticella 201 bologna BO IT 40128

Block rangeA8:3F:A1:B0:00:00– A8:3F:A1:BF:FF:FF

Address capacity1,048,576

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

A8:3F:A1:B0:00:00 A8:3F:A1:B7:FF:FF A8:3F:A1:BF:FF:FF