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MAC prefix 00:12:FD

Assigned by the IEEE to OPTIMUS IC S.A..

Prefix
00:12:FD   00-12-FD   0012.FD
Block type
MA-L (16,777,216 addresses)
Address range
00:12:FD:00:00:00 – 00:12:FD:FF:FF:FF
Organization
OPTIMUS IC S.A.
Registered address
NAWOJOWSKA 118, NOWY SACZ MALOPOLSKA 33-300, PL
Country
Poland (PL)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 00:12:FD:00:00:00

OPTIMUS IC S.A. holds 1 block in total: see all. Source: IEEE Registration Authority public listing.