Who owns MAC prefix 0000A3?

0000A3 is registered to NETWORK APPLICATION TECHNOLOGY in the IEEE MA-L registry.

What devices use 0000A3?

Any network device with a MAC address starting 00:00:A3 was manufactured by or for NETWORK APPLICATION TECHNOLOGY.

MA-L · OUI prefix

NETWORK APPLICATION TECHNOLOGY

Any MAC address starting 00:00:A3 is registered to NETWORK APPLICATION TECHNOLOGY in US.

OUI prefix	0000A3
Vendor	NETWORK APPLICATION TECHNOLOGY
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:00:A3:00:00:00

What this means

The IEEE assigned the MA-L block 0000A3 to NETWORK APPLICATION TECHNOLOGY. 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 00:00:A3, it is NETWORK APPLICATION TECHNOLOGY hardware.

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