MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix24:A1:0D:90:00:00 /28
Vendor addressViale Europa, 128 Spoltore Spoltore IT 65010
Country🇮🇹 Italy
RegisteredSep 11, 2025
Block range24:A1:0D:90:00:00– 24:A1:0D:9F: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
Where this block sits
Previous
24:A1:0D:80:00:00 /28
Luxvisions lnnovation TechnologyCorp.Limited
Next
24:A1:0D:A0:00:00 /28
Detroit Defense Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Tecnojest SrL holds 1 registered blocks in the IEEE registry, ranking #29,426 of 33,427 organizations by block count.