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MAC prefix 90:A7:BF

Assigned by the IEEE to EM Microelectronic.

Prefix
90:A7:BF   90-A7-BF   90A7.BF
Block type
MA-L (16,777,216 addresses)
Address range
90:A7:BF:00:00:00 – 90:A7:BF:FF:FF:FF
Organization
EM Microelectronic
Registered address
Rue des Sors 3, Marin-Epagnier Neuchatel 2074, CH
Country
Switzerland (CH)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 90:A7:BF:00:00:00

EM Microelectronic holds 36 blocks in total: see all. Source: IEEE Registration Authority public listing.