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MAC prefix 00:15:57

Assigned by the IEEE to Olivetti.

Prefix
00:15:57   00-15-57   0015.57
Block type
MA-L (16,777,216 addresses)
Address range
00:15:57:00:00:00 – 00:15:57:FF:FF:FF
Organization
Olivetti
Registered address
Via Jervis 77, Ivrea Torino 10015, IT
Country
Italy (IT)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 00:15:57:00:00:00

Olivetti holds 1 block in total: see all. Source: IEEE Registration Authority public listing.