Who owns MAC prefix 00307A?

00307A is registered to Advanced Technology & Systems in the IEEE MA-L registry.

What devices use 00307A?

Any network device with a MAC address starting 00:30:7A was manufactured by or for Advanced Technology & Systems.

MA-L · OUI prefix

Advanced Technology & Systems

Any MAC address starting 00:30:7A is registered to Advanced Technology & Systems in JP.

OUI prefix	00307A
Vendor	Advanced Technology & Systems
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	00:30:7A:00:00:00

What this means

The IEEE assigned the MA-L block 00307A to Advanced Technology & 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 00:30:7A, it is Advanced Technology & Systems hardware.

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