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MAC prefix 00:21:FF

Assigned by the IEEE to Cyfrowy Polsat SA.

Prefix
00:21:FF   00-21-FF   0021.FF
Block type
MA-L (16,777,216 addresses)
Address range
00:21:FF:00:00:00 – 00:21:FF:FF:FF:FF
Organization
Cyfrowy Polsat SA
Registered address
Łubinowa, Warsaw Mazowieckie 03-878, PL
Country
Poland (PL)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 00:21:FF:00:00:00

Cyfrowy Polsat SA holds 1 block in total: see all. Source: IEEE Registration Authority public listing.