6C:DF:FB:B CELL System Co.,Ltd.
Every MAC address from 6C:DF:FB:B0:00:00 to 6C:DF:FB:BF:FF:FF belongs to a block the IEEE assigned to CELL System Co.,Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 6C:DF:FB:B belongs to
Written 6C:DF:FB:B, 6C-DF-FB-B or 6CDFFBB, depending on the system. Look up a full address.
Prefix
6C:DF:FB:B/28
Organization
CELL System Co.,Ltd.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
6C:DF:FB:B0:00:00
Last address
6C:DF:FB:BF:FF:FF
Address type
Globally unique, unicast
Registered address
1-2-8 Azamino-minami, Aobaku Yokohama Kanagawa JP 225-0012
Parent block
Inside 6C:DF:FB
This MA-M block is carved from the 24-bit block 6C:DF:FB, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.