Who owns MAC prefix 70B3D50E7?

70B3D50E7 is registered to Pure Air Filtration in the IEEE MA-S registry.

What devices use 70B3D50E7?

Any network device with a MAC address starting 70:B3:D5:0E:7 was manufactured by or for Pure Air Filtration.

MA-S · OUI prefix

Pure Air Filtration

Any MAC address starting 70:B3:D5:0E:7 is registered to Pure Air Filtration in US.

OUI prefix	70B3D50E7
Vendor	Pure Air Filtration
Registry	MA-S (36-bit, small block)
Country	US
Example MAC	70:B3:D5:0E:7:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D50E7 to Pure Air Filtration. 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:D5:0E:7, it is Pure Air Filtration hardware.

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