What this means
The IEEE assigned the MA-L block 9803A0 to ABB n.v. Power Quality Products. 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 98:03:A0, it is ABB n.v. Power Quality Products hardware.
Frequently Asked Questions
Who owns MAC prefix 9803A0?
9803A0 is registered to ABB n.v. Power Quality Products 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. ABB n.v. Power Quality Products's block covers 16,777,216 addresses.
What devices use 9803A0?
Any network device with a MAC address starting 98:03:A0 was manufactured by or for ABB n.v. Power Quality Products.