Kolff Computer Supplies b.v.

MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

Prefix7C:C6:C4:00:00:00 /24

Vendor addressKuipershaven 22 Dordrecht Zuid-Holland NL 3311 AL

RegisteredOct 18, 2016

Block range7C:C6:C4:00:00:00– 7C:C6:C4:FF:FF:FF

Address capacity16,777,216

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

7C:C6:C4:00:00:00 7C:C6:C4:7F:FF:FF 7C:C6:C4:FF:FF:FF

Where this block sits

Kolff Computer Supplies b.v. holds 1 registered blocks in the IEEE registry, ranking #17,818 of 33,421 organizations by block count.