Who owns MAC prefix 30ECA3?

30ECA3 is registered to Alfatron Electronics INC in the IEEE MA-L registry.

What devices use 30ECA3?

Any network device with a MAC address starting 30:EC:A3 was manufactured by or for Alfatron Electronics INC.

MA-L · OUI prefix

Alfatron Electronics INC

Any MAC address starting 30:EC:A3 is registered to Alfatron Electronics INC in US.

OUI prefix	30ECA3
Vendor	Alfatron Electronics INC
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	30:EC:A3:00:00:00

What this means

The IEEE assigned the MA-L block 30ECA3 to Alfatron Electronics INC. 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 30:EC:A3, it is Alfatron Electronics INC hardware.

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