Who owns MAC prefix 70B3D503A?

70B3D503A is registered to Ochno AB in the IEEE MA-S registry.

What devices use 70B3D503A?

Any network device with a MAC address starting 70:B3:D5:03:A was manufactured by or for Ochno AB.

MA-S · OUI prefix

Ochno AB

Any MAC address starting 70:B3:D5:03:A is registered to Ochno AB in SE.

OUI prefix	70B3D503A
Vendor	Ochno AB
Registry	MA-S (36-bit, small block)
Country	SE
Example MAC	70:B3:D5:03:A:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D503A to Ochno AB. 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:D5:03:A, it is Ochno AB hardware.

Other Ochno AB prefixes

Ochno AB holds 2 registered blocks in total.

BCDFE14

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