This is a universally administered unicast address with a registered vendor prefix.
MAC address58:21:9D:7F:FF:FF
OUI58:21:9D
Vendor addressRoom 1208, No. 999 West Zhongshan Road, Changning District, Shanghai, China shanghai shanghai CN 200030
Country🇨🇳 China
Block range58:21:9D:00:00:00– 58:21:9D: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-645A:21:9D:FF:FE:7F:FF:FF
Possible IPv6 link-local derivationfe80::5a21:9dff: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 →