CELL System Co.,Ltd. - MAC Prefix 6CDFFBB (MA-M)

What this means

The IEEE assigned the MA-M block 6CDFFBB to CELL System Co.,Ltd.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 6C:DF:FB:B, it is CELL System Co.,Ltd. hardware.

Frequently Asked Questions

Who owns MAC prefix 6CDFFBB?

6CDFFBB is registered to CELL System Co.,Ltd. in the IEEE MA-M registry.

What does the MA-M registry type mean?

An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. CELL System Co.,Ltd.'s block covers 1,048,576 addresses.

What devices use 6CDFFBB?

Any network device with a MAC address starting 6C:DF:FB:B was manufactured by or for CELL System Co.,Ltd..

OUI prefix	6CDFFBB
Vendor	CELL System Co.,Ltd.
Registry	MA-M (28-bit, medium block)
Block size	1,048,576 addresses
Country	JP
Other blocks by this vendor	1 total
Example MAC	6C:DF:FB:B:00:00:00