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.
Frequently Asked Questions
Who owns MAC prefix 00307A?
00307A is registered to Advanced Technology & Systems in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Advanced Technology & Systems's block covers 16,777,216 addresses.
What devices use 00307A?
Any network device with a MAC address starting 00:30:7A was manufactured by or for Advanced Technology & Systems.