What this means
The IEEE assigned the MA-L block 0003AD to Emerson Energy Systems AB. 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 00:03:AD, it is Emerson Energy Systems AB hardware.
Frequently Asked Questions
Who owns MAC prefix 0003AD?
0003AD is registered to Emerson Energy Systems AB 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. Emerson Energy Systems AB's block covers 16,777,216 addresses.
What devices use 0003AD?
Any network device with a MAC address starting 00:03:AD was manufactured by or for Emerson Energy Systems AB.