What this means
The IEEE assigned the MA-L block 340A22 to TOP-ACCESS ELECTRONICS CO 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 34:0A:22, it is TOP-ACCESS ELECTRONICS CO LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 340A22?
340A22 is registered to TOP-ACCESS ELECTRONICS CO 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. TOP-ACCESS ELECTRONICS CO LTD's block covers 16,777,216 addresses.
What devices use 340A22?
Any network device with a MAC address starting 34:0A:22 was manufactured by or for TOP-ACCESS ELECTRONICS CO LTD.