What this means
The IEEE assigned the MA-L block ECE555 to Hirschmann Automation. 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:E5:55, it is Hirschmann Automation hardware.
Frequently Asked Questions
Who owns MAC prefix ECE555?
ECE555 is registered to Hirschmann Automation 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. Hirschmann Automation's block covers 16,777,216 addresses.
What devices use ECE555?
Any network device with a MAC address starting EC:E5:55 was manufactured by or for Hirschmann Automation.