Who owns MAC prefix 70B3D531F?

70B3D531F is registered to Elcoma in the IEEE MA-S registry.

What devices use 70B3D531F?

Any network device with a MAC address starting 70:B3:D5:31:F was manufactured by or for Elcoma.

MA-S · OUI prefix

Elcoma

Any MAC address starting 70:B3:D5:31:F is registered to Elcoma in BR.

OUI prefix	70B3D531F
Vendor	Elcoma
Registry	MA-S (36-bit, small block)
Country	BR
Example MAC	70:B3:D5:31:F:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D531F to Elcoma. 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:D5:31:F, it is Elcoma hardware.

Other Elcoma prefixes

Elcoma holds 2 registered blocks in total.

E8B4706

Look up another MAC