Who owns MAC prefix 3C01EF?

3C01EF is registered to Sony Corporation in the IEEE MA-L registry.

What devices use 3C01EF?

Any network device with a MAC address starting 3C:01:EF was manufactured by or for Sony Corporation.

MA-L · OUI prefix

Sony Corporation

Any MAC address starting 3C:01:EF is registered to Sony Corporation in JP.

OUI prefix	3C01EF
Vendor	Sony Corporation
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	3C:01:EF:00:00:00

What this means

The IEEE assigned the MA-L block 3C01EF to Sony Corporation. 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 3C:01:EF, it is Sony Corporation hardware.

Other Sony Corporation prefixes

Sony Corporation holds 86 registered blocks in total.

00014A 000AD9 000E07 000FDE 0012EE 0013A9 001620 0016B8 001813 001963 001A75 001A80 all 86 »

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