This is a universally administered unicast address with a registered vendor prefix.
MAC address78:99:5C:FF:FF:FF
OUI78:99:5C
Vendor address12F,Tower Building #3,China Academy of Science and Technology Development,Gaoxin South Ave.1 Shen Zhen GuangDong CN 518057
Country🇨🇳 China
Block range78:99:5C:00:00:00– 78:99:5C: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-647A:99:5C:FF:FE:FF:FF:FF
Possible IPv6 link-local derivationfe80::7a99:5cff: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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