This is a universally administered unicast address with a registered vendor prefix.
MAC addressF4:97:9D:2F:FF:FF
OUIF4:97:9D
Vendor address144/15 M.1 T. Chang Phuek A. Mueang Chiang Mai TH 50300
Block rangeF4:97:9D:20:00:00– F4:97:9D:2F: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-64F6:97:9D:FF:FE:2F:FF:FF
Possible IPv6 link-local derivationfe80::f697:9dff:fe2f: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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