OUI Lookup
9c3066
RWE Effizienz GmbH
Manufacturer Information
- OUI Prefix
- 9c3066
- Manufacturer
- RWE Effizienz GmbH
- Address
- Flamingoweg 1 Dortmund NRW DE 44139
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 9C3066
The OUI prefix 9C3066 is assigned to RWE Effizienz GmbH, based in Flamingoweg 1 Dortmund NRW DE 44139 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to RWE Effizienz GmbH.