HTTPfy

MAC prefix 00:20:EF

Assigned by the IEEE to USC CORPORATION.

Prefix
00:20:EF   00-20-EF   0020.EF
Block type
MA-L (16,777,216 addresses)
Address range
00:20:EF:00:00:00 – 00:20:EF:FF:FF:FF
Organization
USC CORPORATION
Registered address
6-4, OSAKI 1-CHOME, 141, JP
Country
Japan (JP)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 00:20:EF:00:00:00

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