What this means
The IEEE assigned the MA-L block 00207D to ADVANCED COMPUTER APPLICATIONS. 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 00:20:7D, it is ADVANCED COMPUTER APPLICATIONS hardware.
Frequently Asked Questions
Who owns MAC prefix 00207D?
00207D is registered to ADVANCED COMPUTER APPLICATIONS 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 COMPUTER APPLICATIONS's block covers 16,777,216 addresses.
What devices use 00207D?
Any network device with a MAC address starting 00:20:7D was manufactured by or for ADVANCED COMPUTER APPLICATIONS.