Who owns MAC prefix A4A1C2?

A4A1C2 is registered to Ericsson AB in the IEEE MA-L registry.

What devices use A4A1C2?

Any network device with a MAC address starting A4:A1:C2 was manufactured by or for Ericsson AB.

MA-L · OUI prefix

Ericsson AB

Any MAC address starting A4:A1:C2 is registered to Ericsson AB.

OUI prefix	A4A1C2
Vendor	Ericsson AB
Registry	MA-L (24-bit, large block)
Example MAC	A4:A1:C2:00:00:00

What this means

The IEEE assigned the MA-L block A4A1C2 to Ericsson 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 A4:A1:C2, it is Ericsson AB hardware.

Other Ericsson AB prefixes

Ericsson AB holds 29 registered blocks in total.

04FB66 18F7F6 1C90BE 24CBE1 3407FB 346E9D 348446 044E06 3C197D 549B72 58454C 58707F all 29 »

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