Who owns MAC prefix 4C858A?

4C858A is registered to BUFFALO.INC in the IEEE MA-L registry.

What devices use 4C858A?

Any network device with a MAC address starting 4C:85:8A was manufactured by or for BUFFALO.INC.

MA-L · OUI prefix

BUFFALO.INC

Any MAC address starting 4C:85:8A is registered to BUFFALO.INC in JP.

OUI prefix	4C858A
Vendor	BUFFALO.INC
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	4C:85:8A:00:00:00

What this means

The IEEE assigned the MA-L block 4C858A to BUFFALO.INC. 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 4C:85:8A, it is BUFFALO.INC hardware.

Other BUFFALO.INC prefixes

BUFFALO.INC holds 35 registered blocks in total.

000740 000D0B 001601 001D73 0024A5 002BF5 004026 00E5F1 106F3F 18C2BF 18ECE7 343DC4 all 35 »

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