What this means
The IEEE assigned the MA-L block ACF473 to iRobot Corporation. 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 AC:F4:73, it is iRobot Corporation hardware.
Frequently Asked Questions
Who owns MAC prefix ACF473?
ACF473 is registered to iRobot Corporation 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. iRobot Corporation's block covers 16,777,216 addresses.
What devices use ACF473?
Any network device with a MAC address starting AC:F4:73 was manufactured by or for iRobot Corporation.