What this means
The IEEE assigned the MA-L block 789A18 to Routerboard.com. 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 78:9A:18, it is Routerboard.com hardware.
Frequently Asked Questions
Who owns MAC prefix 789A18?
789A18 is registered to Routerboard.com 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. Routerboard.com's block covers 16,777,216 addresses.
What devices use 789A18?
Any network device with a MAC address starting 78:9A:18 was manufactured by or for Routerboard.com.