20:B3:7F:E Kawasaki Thermal Engineering Co.,Ltd.
Every MAC address from 20:B3:7F:E0:00:00 to 20:B3:7F:EF:FF:FF belongs to a block the IEEE assigned to Kawasaki Thermal Engineering Co.,Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 20:B3:7F:E belongs to
Written 20:B3:7F:E, 20-B3-7F-E or 20B37FE, depending on the system. Look up a full address.
Prefix
20:B3:7F:E/28
Organization
Kawasaki Thermal Engineering Co.,Ltd.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
20:B3:7F:E0:00:00
Last address
20:B3:7F:EF:FF:FF
Address type
Globally unique, unicast
Registered address
1000 Aoji-cho Kusatsu-shi Shiga JP 525-8558
Parent block
Inside 20:B3:7F
This MA-M block is carved from the 24-bit block 20:B3:7F, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.