This is a locally administered address in the IEEE 802c ELI (Extended Local Identifier) quadrant, whose company ID is registered to a real organization. The vendor identity can be trusted even though the address itself is not universally administered.
MAC addressFA:E1:90:7F:FF:FF
OUIFA:E1:90
Vendor addressNO.57,LANE 350, NANSHANG ROAD, GUEISHAN HSIANG, TAOYUAN HSIEN, TW 333
Country🇹🇼 Taiwan
Block rangeFA:E1:90:00:00:00– FA:E1:90:FF:FF:FF
Address capacity16,777,216
TransmissionUnicast: addressed to a single device
AdministrationLocally administered: set by software, not burned into hardware
IEEE 802c quadrantELI: Extended Local Identifier
RandomizationLikely randomized
Derived modified EUI-64F8:E1:90:FF:FE:7F:FF:FF
Possible IPv6 link-local derivationfe80::f8e1:90ff: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 →