Who owns MAC prefix 0011B4?

0011B4 is registered to Westermo Network Technologies AB in the IEEE MA-L registry.

What devices use 0011B4?

Any network device with a MAC address starting 00:11:B4 was manufactured by or for Westermo Network Technologies AB.

MA-L · OUI prefix

Westermo Network Technologies AB

Any MAC address starting 00:11:B4 is registered to Westermo Network Technologies AB.

OUI prefix	0011B4
Vendor	Westermo Network Technologies AB
Registry	MA-L (24-bit, large block)
Example MAC	00:11:B4:00:00:00

What this means

The IEEE assigned the MA-L block 0011B4 to Westermo Network Technologies 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 00:11:B4, it is Westermo Network Technologies AB hardware.

Other Westermo Network Technologies AB prefixes

Westermo Network Technologies AB holds 2 registered blocks in total.

00077C

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