This is a universally administered unicast address with a registered vendor prefix.
MAC addressC8:8E:D1:50:00:00
OUIC8:8E:D1
Vendor addressKDX Shibadaimon.Bld 2F Shibadaimon Minato-ku Tokyo 105-0012 Japan Tokyo Minato-ku JP 105-0012
Block rangeC8:8E:D1:50:00:00– C8:8E:D1:5F: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-64CA:8E:D1:FF:FE:50:00:00
Possible IPv6 link-local derivationfe80::ca8e:d1ff:fe50:0

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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