What this means
The IEEE assigned the MA-L block ECD909 to ALPSALPINE CO,.LTD. 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 EC:D9:09, it is ALPSALPINE CO,.LTD hardware.
Frequently Asked Questions
Who owns MAC prefix ECD909?
ECD909 is registered to ALPSALPINE CO,.LTD 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. ALPSALPINE CO,.LTD's block covers 16,777,216 addresses.
What devices use ECD909?
Any network device with a MAC address starting EC:D9:09 was manufactured by or for ALPSALPINE CO,.LTD.