This is a universally administered unicast address with a registered vendor prefix.
MAC address98:3F:9F:FF:FF:FF
OUI98:3F:9F
Vendor address399 Linquan St., Dongnan Building 411 Suzhou Jiangsu CN 215123
Block range98:3F:9F:00:00:00– 98:3F:9F: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-649A:3F:9F:FF:FE:FF:FF:FF
Possible IPv6 link-local derivationfe80::9a3f:9fff:feff: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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