This is a universally administered unicast address with a registered vendor prefix.
MAC address10:54:D2:CF:FF:FF
OUI10:54:D2
Vendor address1F, No. 22, Lane 35, Jihu Road, Neihu district Taipei City Taiwan TW 114754
Block range10:54:D2:C0:00:00– 10:54:D2:CF: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-6412:54:D2:FF:FE:CF:FF:FF
Possible IPv6 link-local derivationfe80::1254:d2ff:fecf: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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