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MAC prefix 00:00:DA

Assigned by the IEEE to ATEX.

Prefix
00:00:DA   00-00-DA   0000.DA
Block type
MA-L (16,777,216 addresses)
Address range
00:00:DA:00:00:00 – 00:00:DA:FF:FF:FF
Organization
ATEX
Registered address
15 CROSBY DRIVE, BEDFORD MA 01730, US
Country
United States (US)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 00:00:DA:00:00:00

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