Who owns MAC prefix 444B5D?

444B5D is registered to GE Healthcare in the IEEE MA-L registry.

What devices use 444B5D?

Any network device with a MAC address starting 44:4B:5D was manufactured by or for GE Healthcare.

MA-L · OUI prefix

GE Healthcare

Any MAC address starting 44:4B:5D is registered to GE Healthcare in FI.

OUI prefix	444B5D
Vendor	GE Healthcare
Registry	MA-L (24-bit, large block)
Country	FI
Example MAC	44:4B:5D:00:00:00

What this means

The IEEE assigned the MA-L block 444B5D to GE Healthcare. 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 44:4B:5D, it is GE Healthcare hardware.

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