Who owns MAC prefix 0030F3?

0030F3 is registered to At Work Computers in the IEEE MA-L registry.

What devices use 0030F3?

Any network device with a MAC address starting 00:30:F3 was manufactured by or for At Work Computers.

MA-L · OUI prefix

At Work Computers

Any MAC address starting 00:30:F3 is registered to At Work Computers in US.

OUI prefix	0030F3
Vendor	At Work Computers
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:30:F3:00:00:00

What this means

The IEEE assigned the MA-L block 0030F3 to At Work Computers. 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 00:30:F3, it is At Work Computers hardware.

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