Who owns MAC prefix 70B3D54CC?

70B3D54CC is registered to FRESENIUS MEDICAL CARE in the IEEE MA-S registry.

What devices use 70B3D54CC?

Any network device with a MAC address starting 70:B3:D5:4C:C was manufactured by or for FRESENIUS MEDICAL CARE.

MA-S · OUI prefix

FRESENIUS MEDICAL CARE

Any MAC address starting 70:B3:D5:4C:C is registered to FRESENIUS MEDICAL CARE in US.

OUI prefix	70B3D54CC
Vendor	FRESENIUS MEDICAL CARE
Registry	MA-S (36-bit, small block)
Country	US
Example MAC	70:B3:D5:4C:C:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D54CC to FRESENIUS MEDICAL CARE. 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 70:B3:D5:4C:C, it is FRESENIUS MEDICAL CARE hardware.

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