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MAC prefix 00:40:42

Assigned by the IEEE to N.A.T. GMBH.

Prefix
00:40:42   00-40-42   0040.42
Block type
MA-L (16,777,216 addresses)
Address range
00:40:42:00:00:00 – 00:40:42:FF:FF:FF
Organization
N.A.T. GMBH
Registered address
GOETHESTR. 2
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 00:40:42:00:00:00

N.A.T. GMBH holds 1 block in total: see all. Source: IEEE Registration Authority public listing.