What this means
The IEEE assigned the MA-L block 000511 to Complementary Technologies 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 00:05:11, it is Complementary Technologies Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 000511?
000511 is registered to Complementary Technologies 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. Complementary Technologies Ltd's block covers 16,777,216 addresses.
What devices use 000511?
Any network device with a MAC address starting 00:05:11 was manufactured by or for Complementary Technologies Ltd.