What this means
The IEEE assigned the MA-L block 149F43 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 14:9F:43, it is Cisco Meraki hardware.
Frequently Asked Questions
Who owns MAC prefix 149F43?
149F43 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 149F43?
Any network device with a MAC address starting 14:9F:43 was manufactured by or for Cisco Meraki.