What this means
The IEEE assigned the MA-M block A028334 to Firm INFORMTEST 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 A0:28:33:4, it is Firm INFORMTEST Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix A028334?
A028334 is registered to Firm INFORMTEST Ltd. 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. Firm INFORMTEST Ltd.'s block covers 1,048,576 addresses.
What devices use A028334?
Any network device with a MAC address starting A0:28:33:4 was manufactured by or for Firm INFORMTEST Ltd..