What this means
The IEEE assigned the MA-L block 001E1E to Honeywell Life Safety. 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 00:1E:1E, it is Honeywell Life Safety hardware.
Frequently Asked Questions
Who owns MAC prefix 001E1E?
001E1E is registered to Honeywell Life Safety 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. Honeywell Life Safety's block covers 16,777,216 addresses.
What devices use 001E1E?
Any network device with a MAC address starting 00:1E:1E was manufactured by or for Honeywell Life Safety.