What this means
The IEEE assigned the MA-L block A03975 to Leo Bodnar Electronics 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 A0:39:75, it is Leo Bodnar Electronics Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix A03975?
A03975 is registered to Leo Bodnar Electronics 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. Leo Bodnar Electronics Ltd's block covers 16,777,216 addresses.
What devices use A03975?
Any network device with a MAC address starting A0:39:75 was manufactured by or for Leo Bodnar Electronics Ltd.