1 registered blocks

Efficient Residential Heating GmbH MAC Addresses

All OUI prefixes assigned to Efficient Residential Heating GmbH by the IEEE. Any device MAC beginning with one of these belongs to this vendor.

MA-S (36-bit, small block)1 block
Combined address space4,096 addresses

All Efficient Residential Heating GmbH prefixes

8C1F64DDBMA-S

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