What this means
The IEEE assigned the MA-L block 000C66 to Pronto Networks Inc. 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 00:0C:66, it is Pronto Networks Inc hardware.
Frequently Asked Questions
Who owns MAC prefix 000C66?
000C66 is registered to Pronto Networks Inc 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. Pronto Networks Inc's block covers 16,777,216 addresses.
What devices use 000C66?
Any network device with a MAC address starting 00:0C:66 was manufactured by or for Pronto Networks Inc.