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MAC prefix 20:91:D9

Assigned by the IEEE to I'M SPA.

Prefix
20:91:D9   20-91-D9   2091.D9
Block type
MA-L (16,777,216 addresses)
Address range
20:91:D9:00:00:00 – 20:91:D9:FF:FF:FF
Organization
I'M SPA
Registered address
VIA BIRON 102/3, MONTEVIALE VICENZA 36050, IT
Country
Italy (IT)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 20:91:D9:00:00:00

I'M SPA holds 1 block in total: see all. Source: IEEE Registration Authority public listing.