This is a universally administered unicast address with a registered vendor prefix.
MAC addressA4:6C:C1:00:00:00
OUIA4:6C:C1
Vendor addressHeinrich-Hertz-Straße 18 Unna North Rhine-Westfalia DE 59423
Block rangeA4:6C:C1:00:00:00– A4:6C:C1:FF:FF:FF
Address capacity16,777,216
TransmissionUnicast: addressed to a single device
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
RandomizationNot randomized
Derived modified EUI-64A6:6C:C1:FF:FE:00:00:00
Possible IPv6 link-local derivationfe80::a66c:c1ff:fe00:0

The EUI-64 and IPv6 link-local fields are a mathematical derivation from this MAC address. They don't confirm the device currently uses that IPv6 address.

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