This is a universally administered unicast address with a registered vendor prefix.
MAC addressC0:EA:C3:EF:FF:FF
OUIC0:EA:C3
Vendor addressUnit 404, 4th Floor, Building 12, Yard 69, Fushi Road, Haidian District, Beijing Beijing CN 100000
Block rangeC0:EA:C3:E0:00:00– C0:EA:C3:EF: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-64C2:EA:C3:FF:FE:EF:FF:FF
Possible IPv6 link-local derivationfe80::c2ea:c3ff:feef: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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