HTTPfy

MAC prefix 00:20:5F

Assigned by the IEEE to GAMMADATA COMPUTER GMBH.

Prefix
00:20:5F   00-20-5F   0020.5F
Block type
MA-L (16,777,216 addresses)
Address range
00:20:5F:00:00:00 – 00:20:5F:FF:FF:FF
Organization
GAMMADATA COMPUTER GMBH
Registered address
GUTENBERGSTR. 13
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 00:20:5F:00:00:00

GAMMADATA COMPUTER GMBH holds 1 block in total: see all. Source: IEEE Registration Authority public listing.