Who owns MAC prefix 38256B?

38256B is registered to Microsoft Mobile Oy in the IEEE MA-L registry.

What devices use 38256B?

Any network device with a MAC address starting 38:25:6B was manufactured by or for Microsoft Mobile Oy.

MA-L · OUI prefix

Microsoft Mobile Oy

Any MAC address starting 38:25:6B is registered to Microsoft Mobile Oy in FI.

OUI prefix	38256B
Vendor	Microsoft Mobile Oy
Registry	MA-L (24-bit, large block)
Country	FI
Example MAC	38:25:6B:00:00:00

What this means

The IEEE assigned the MA-L block 38256B to Microsoft Mobile Oy. 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 38:25:6B, it is Microsoft Mobile Oy hardware.

Other Microsoft Mobile Oy prefixes

Microsoft Mobile Oy holds 11 registered blocks in total.

300D43 38F23E 5CCA1A 607EDD 6C2483 6C2779 6C8FB5 A4516F B4E1C4 E498D1

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