Who owns MAC prefix 00116D?

00116D is registered to American Time and Signal in the IEEE MA-L registry.

What devices use 00116D?

Any network device with a MAC address starting 00:11:6D was manufactured by or for American Time and Signal.

MA-L · OUI prefix

American Time and Signal

Any MAC address starting 00:11:6D is registered to American Time and Signal in US.

OUI prefix	00116D
Vendor	American Time and Signal
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:11:6D:00:00:00

What this means

The IEEE assigned the MA-L block 00116D to American Time and Signal. 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 00:11:6D, it is American Time and Signal hardware.

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