MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixBC:97:40:20:00:00 /28
Vendor addressBlytækkervej 10 Hillerød DK 3400
Country🇩🇰 Denmark
RegisteredMar 23, 2019
Block rangeBC:97:40:20:00:00– BC:97:40:2F: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
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Lattec I/S holds 1 registered blocks in the IEEE registry, ranking #18,237 of 33,427 organizations by block count.