What this means
The IEEE assigned the MA-L block EC3F05 to Institute 706, The Second Academy China Aerospace Science & Industry Corp. 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 EC:3F:05, it is Institute 706, The Second Academy China Aerospace Science & Industry Corp hardware.
Frequently Asked Questions
Who owns MAC prefix EC3F05?
EC3F05 is registered to Institute 706, The Second Academy China Aerospace Science & Industry Corp 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. Institute 706, The Second Academy China Aerospace Science & Industry Corp's block covers 16,777,216 addresses.
What devices use EC3F05?
Any network device with a MAC address starting EC:3F:05 was manufactured by or for Institute 706, The Second Academy China Aerospace Science & Industry Corp.