Keith & Koep GmbH

MA-L

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

Prefix64:D2:41:00:00:00 /24

Vendor addressUellendahler Str. 199 Wuppertal NRW DE 42109

RegisteredFeb 23, 2011

Block range64:D2:41:00:00:00– 64:D2:41: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

64:D2:41:00:00:00 64:D2:41:7F:FF:FF 64:D2:41:FF:FF:FF

Where this block sits

Keith & Koep GmbH holds 21 registered blocks in the IEEE registry, ranking #165 of 33,421 organizations by block count.

Other blocks registered to Keith & Koep GmbH

00:50:C2:0E:C0:00 /36 IAB 00:50:C2:3B:80:00 /36 IAB 00:50:C2:66:80:00 /36 IAB 00:50:C2:70:10:00 /36 IAB 00:50:C2:78:60:00 /36 IAB 00:50:C2:82:B0:00 /36 IAB 00:50:C2:8B:50:00 /36 IAB 00:50:C2:94:20:00 /36 IAB 00:50:C2:99:00:00 /36 IAB 00:50:C2:9F:20:00 /36 IAB 00:50:C2:A7:70:00 /36 IAB 00:50:C2:B1:40:00 /36 IAB