MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixCC:39:53:B0:00:00 /28
Vendor addressCvetlična ulica 52 Polzela SI 3313
Country🇸🇮 Slovenia
RegisteredJul 20, 2026
Block rangeCC:39:53:B0:00:00– CC:39:53: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
Where this block sits
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CC:39:53:A0:00:00 /28
InTallyCon Development FZCO
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CC:39:53:C0:00:00 /28
BROADBAND NET INC
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Dat-Con d.o.o. holds 2 registered blocks in the IEEE registry, ranking #1,838 of 33,421 organizations by block count.
Other blocks registered to Dat-Con d.o.o.