This is a universally administered unicast address with a registered vendor prefix.
MAC addressA4:3A:39:7F:FF:FF
OUIA4:3A:39
Vendor addressROOM 1006, BLOCK B, QIANHAI ECONOMIC AND TRADE CENTER, CHINA MERCHANTS GROUP, NO.151 WEST FREE TRADE STREET, QIANHAI, SHENZHEN CN 518000
Country🇨🇳 China
Block rangeA4:3A:39:00:00:00– A4:3A:39: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-64A6:3A:39:FF:FE:7F:FF:FF
Possible IPv6 link-local derivationfe80::a63a:39ff:fe7f: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.
Have a list, not just one address? Paste it and extract every MAC address in it →
New to MAC addresses? What they are and how they're structured →