This is a universally administered unicast address with a registered vendor prefix.
MAC address50:FF:99:50:00:00
OUI50:FF:99
Vendor address20-22 Wenlock Road London London GB N1 7GU
Block range50:FF:99:50:00:00– 50:FF:99:5F: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-6452:FF:99:FF:FE:50:00:00
Possible IPv6 link-local derivationfe80::52ff:99ff: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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