What this means
The IEEE assigned the MA-L block 00057A to Overture Networks. 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 00:05:7A, it is Overture Networks hardware.
Frequently Asked Questions
Who owns MAC prefix 00057A?
00057A is registered to Overture Networks 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. Overture Networks's block covers 16,777,216 addresses.
What devices use 00057A?
Any network device with a MAC address starting 00:05:7A was manufactured by or for Overture Networks.