This is a universally administered unicast address with a registered vendor prefix.
MAC address18:20:A6:FF:FF:FF
OUI18:20:A6
Vendor address2-24 Sumiyoshicho, Naka-ku Yokohama-shi Kanagawa JP 231-0013
Block range18:20:A6:00:00:00– 18:20:A6: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-641A:20:A6:FF:FE:FF:FF:FF
Possible IPv6 link-local derivationfe80::1a20:a6ff:feff: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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