This is a universally administered unicast address with a registered vendor prefix.
MAC addressD4:A0:FB:5F:FF:FF
OUID4:A0:FB
Vendor addressKauhakorvenkatu 52 Tampere Pirkanmaa FI 33720
Block rangeD4:A0:FB:50:00:00– D4:A0:FB:5F:FF:FF
Address capacity1,048,576
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-64D6:A0:FB:FF:FE:5F:FF:FF
Possible IPv6 link-local derivationfe80::d6a0:fbff:fe5f:ffff

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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