Who owns MAC prefix 3CFFE4?

3CFFE4 is registered to Siemens AG in the IEEE MA-L registry.

What devices use 3CFFE4?

Any network device with a MAC address starting 3C:FF:E4 was manufactured by or for Siemens AG.

MA-L · OUI prefix

Siemens AG

Any MAC address starting 3C:FF:E4 is registered to Siemens AG in DE.

OUI prefix	3CFFE4
Vendor	Siemens AG
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	3C:FF:E4:00:00:00

What this means

The IEEE assigned the MA-L block 3CFFE4 to Siemens AG. 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:FF:E4, it is Siemens AG hardware.

Other Siemens AG prefixes

Siemens AG holds 23 registered blocks in total.

0001E3 000BA3 000E8C 001B1B 080006 10DFFC 208756 20A8B9 286336 302F1E 30B851 384B24 all 23 »

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