Who owns MAC prefix C4F57C?

C4F57C is registered to Brocade Communications Systems LLC in the IEEE MA-L registry.

What devices use C4F57C?

Any network device with a MAC address starting C4:F5:7C was manufactured by or for Brocade Communications Systems LLC.

MA-L · OUI prefix

Brocade Communications Systems LLC

Any MAC address starting C4:F5:7C is registered to Brocade Communications Systems LLC in US.

OUI prefix	C4F57C
Vendor	Brocade Communications Systems LLC
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	C4:F5:7C:00:00:00

What this means

The IEEE assigned the MA-L block C4F57C to Brocade Communications Systems LLC. 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 C4:F5:7C, it is Brocade Communications Systems LLC hardware.

Other Brocade Communications Systems LLC prefixes

Brocade Communications Systems LLC holds 25 registered blocks in total.

000088 00010F 000480 00051E 000533 000CDB 0012F2 0014C9 001BED 002438 0027F8 006069 all 25 »

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