LUMEL S.A. (0C:EF:AF:20:00:00 /28)

LUMEL S.A. 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.

Prefix0C:EF:AF:20:00:00 /28

Vendor addressUl.Slubicka 1 Zielona Gora PL 65-127

Block range0C:EF:AF:20:00:00– 0C:EF:AF: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

0C:EF:AF:20:00:00 0C:EF:AF:27:FF:FF 0C:EF:AF:2F:FF:FF

Other blocks registered to LUMEL S.A.

00:50:C2:5A:30:00 /36 IAB