What this means
The IEEE assigned the MA-M block A4ED430 to Sweam AB. 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 A4:ED:43:0, it is Sweam AB hardware.
Frequently Asked Questions
Who owns MAC prefix A4ED430?
A4ED430 is registered to Sweam AB in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Sweam AB's block covers 1,048,576 addresses.
What devices use A4ED430?
Any network device with a MAC address starting A4:ED:43:0 was manufactured by or for Sweam AB.