This is a universally administered unicast address with a registered vendor prefix.
MAC address64:FB:81:27:FF:FF
OUI64:FB:81
Vendor addressC/Periodista Rafael Gómez Montero, 2. Granada Granada ES 18014
Block range64:FB:81:20:00:00– 64:FB:81:2F: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-6466:FB:81:FF:FE:27:FF:FF
Possible IPv6 link-local derivationfe80::66fb:81ff:fe27: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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