This is a universally administered unicast address with a registered vendor prefix.
MAC addressF4:5B:73:FF:FF:FF
OUIF4:5B:73
Vendor address2nd Floor,Incubation Building, Science Development Institute of China, High-tech South 1st Street, Nanshan District Shenzhen Guangdong CN 518040
Block rangeF4:5B:73:00:00:00– F4:5B:73: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-64F6:5B:73:FF:FE:FF:FF:FF
Possible IPv6 link-local derivationfe80::f65b:73ff: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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