This is a universally administered unicast address with a registered vendor prefix.
MAC address40:9F:87:7F:FF:FF
OUI40:9F:87
Vendor addressjiahua Mansion 3F, 133 North 4th Ring Road East, Chaoyang District Beijing CN 100101
Country🇨🇳 China
Block range40:9F:87:00:00:00– 40:9F:87: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-6442:9F:87:FF:FE:7F:FF:FF
Possible IPv6 link-local derivationfe80::429f:87ff: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.
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