IAB: an Individual Address Block, a /36 covering 4,096 addresses. IEEE's predecessor to MA-S; no longer issued, but existing assignments remain valid.
Prefix00:50:C2:D0:C0:00 /36
Vendor addressBlokken 42 Birkeroed Sjaelland DK DK-3460
Country🇩🇰 Denmark
RegisteredSep 12, 2010
Block range00:50:C2:D0:C0:00– 00:50:C2:D0:CF:FF
Address capacity4,096
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
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00:50:C2:D0:B0:00 /36
CODACO ELECTRONIC s.r.o.
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00:50:C2:D0:D0:00 /36
DECA Card Engineering GmbH
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
JVL Industri Elektronik holds 2 registered blocks in the IEEE registry, ranking #2,337 of 33,427 organizations by block count.
Other blocks registered to JVL Industri Elektronik