This is a universally administered unicast address with a registered vendor prefix.
MAC address00:05:DE:00:00:00
OUI00:05:DE
Vendor addressTwin Bldg. 4th Fl, Seoul, KR
Block range00:05:DE:00:00:00– 00:05:DE: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-6402:05:DE:FF:FE:00:00:00
Possible IPv6 link-local derivationfe80::205:deff:fe00:0

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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