Who owns MAC prefix 2C441B?

2C441B is registered to Spectrum Medical Limited in the IEEE MA-L registry.

What devices use 2C441B?

Any network device with a MAC address starting 2C:44:1B was manufactured by or for Spectrum Medical Limited.

MA-L · OUI prefix

Spectrum Medical Limited

Any MAC address starting 2C:44:1B is registered to Spectrum Medical Limited.

OUI prefix	2C441B
Vendor	Spectrum Medical Limited
Registry	MA-L (24-bit, large block)
Example MAC	2C:44:1B:00:00:00

What this means

The IEEE assigned the MA-L block 2C441B to Spectrum Medical Limited. 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 2C:44:1B, it is Spectrum Medical Limited hardware.

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