Who owns MAC prefix 00A021?

00A021 is registered to General Dynamics Mission Systems in the IEEE MA-L registry.

What devices use 00A021?

Any network device with a MAC address starting 00:A0:21 was manufactured by or for General Dynamics Mission Systems.

MA-L · OUI prefix

General Dynamics Mission Systems

Any MAC address starting 00:A0:21 is registered to General Dynamics Mission Systems in US.

OUI prefix	00A021
Vendor	General Dynamics Mission Systems
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:A0:21:00:00:00

What this means

The IEEE assigned the MA-L block 00A021 to General Dynamics Mission Systems. 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:A0:21, it is General Dynamics Mission Systems hardware.

Other General Dynamics Mission Systems prefixes

General Dynamics Mission Systems holds 3 registered blocks in total.

00148C 0025D4

Look up another MAC