What this means
The IEEE assigned the MA-L block 00173C to Extreme Engineering Solutions. 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 00:17:3C, it is Extreme Engineering Solutions hardware.
Frequently Asked Questions
Who owns MAC prefix 00173C?
00173C is registered to Extreme Engineering Solutions 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. Extreme Engineering Solutions's block covers 16,777,216 addresses.
What devices use 00173C?
Any network device with a MAC address starting 00:17:3C was manufactured by or for Extreme Engineering Solutions.