What this means
The IEEE assigned the MA-L block AC69CF to Cisco Meraki. 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:69:CF, it is Cisco Meraki hardware.
Frequently Asked Questions
Who owns MAC prefix AC69CF?
AC69CF is registered to Cisco Meraki 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. Cisco Meraki's block covers 16,777,216 addresses.
What devices use AC69CF?
Any network device with a MAC address starting AC:69:CF was manufactured by or for Cisco Meraki.