JFA Electronics Industry and Commerce EIRELI
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.
Prefix18:D7:93:70:00:00 /28
Vendor addressRua Flor das Pedras, 175 Belo Horizonte Minas Gerais BR 30810-000
Country🇧🇷 Brazil
Block range18:D7:93:70:00:00– 18:D7:93:7F: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
Other blocks registered to JFA Electronics Industry and Commerce EIRELI