What this means
The IEEE assigned the MA-L block D43A65 to IGRS Engineering Lab 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 D4:3A:65, it is IGRS Engineering Lab Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix D43A65?
D43A65 is registered to IGRS Engineering Lab 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. IGRS Engineering Lab Ltd.'s block covers 16,777,216 addresses.
What devices use D43A65?
Any network device with a MAC address starting D4:3A:65 was manufactured by or for IGRS Engineering Lab Ltd..