HTTPfy

MAC prefix 28:FF:B2

Assigned by the IEEE to Toshiba Corp..

Prefix
28:FF:B2   28-FF-B2   28FF.B2
Block type
MA-L (16,777,216 addresses)
Address range
28:FF:B2:00:00:00 – 28:FF:B2:FF:FF:FF
Organization
Toshiba Corp.
Registered address
1-1 Shibaura 1-Chome, Minato-Ku, Tokyo 105-8001, JP
Country
Japan (JP)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 28:FF:B2:00:00:00

Toshiba holds 17 blocks in total: see all. Source: IEEE Registration Authority public listing.