Who owns MAC prefix 00205C?

00205C is registered to InterNet Systems of Florida, Inc. in the IEEE MA-L registry.

What devices use 00205C?

Any network device with a MAC address starting 00:20:5C was manufactured by or for InterNet Systems of Florida, Inc..

MA-L · OUI prefix

InterNet Systems of Florida, Inc.

Any MAC address starting 00:20:5C is registered to InterNet Systems of Florida, Inc. in US.

OUI prefix	00205C
Vendor	InterNet Systems of Florida, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:20:5C:00:00:00

What this means

The IEEE assigned the MA-L block 00205C to InterNet Systems of Florida, 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 00:20:5C, it is InterNet Systems of Florida, Inc. hardware.

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