What this means
The IEEE assigned the MA-L block 04572F to Sertel Electronics UK 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 04:57:2F, it is Sertel Electronics UK Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 04572F?
04572F is registered to Sertel Electronics UK 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. Sertel Electronics UK Ltd's block covers 16,777,216 addresses.
What devices use 04572F?
Any network device with a MAC address starting 04:57:2F was manufactured by or for Sertel Electronics UK Ltd.