What this means
The IEEE assigned the MA-L block 001D65 to Microwave Radio Communications. 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 00:1D:65, it is Microwave Radio Communications hardware.
Frequently Asked Questions
Who owns MAC prefix 001D65?
001D65 is registered to Microwave Radio Communications 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. Microwave Radio Communications's block covers 16,777,216 addresses.
What devices use 001D65?
Any network device with a MAC address starting 00:1D:65 was manufactured by or for Microwave Radio Communications.