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MAC prefix 9C:30:66

Assigned by the IEEE to RWE Effizienz GmbH.

Prefix
9C:30:66   9C-30-66   9C30.66
Block type
MA-L (16,777,216 addresses)
Address range
9C:30:66:00:00:00 – 9C:30:66:FF:FF:FF
Organization
RWE Effizienz GmbH
Registered address
Flamingoweg 1, Dortmund NRW 44139, DE
Country
Germany (DE)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 9C:30:66:00:00:00

RWE Effizienz GmbH holds 1 block in total: see all. Source: IEEE Registration Authority public listing.