What this means
The IEEE assigned the MA-L block 28E6E9 to SIS Sat Internet Services GmbH. 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 28:E6:E9, it is SIS Sat Internet Services GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 28E6E9?
28E6E9 is registered to SIS Sat Internet Services GmbH 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. SIS Sat Internet Services GmbH's block covers 16,777,216 addresses.
What devices use 28E6E9?
Any network device with a MAC address starting 28:E6:E9 was manufactured by or for SIS Sat Internet Services GmbH.