What this means
The IEEE assigned the MA-L block 00403F to SSANGYONG COMPUTER SYSTEMS. 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 00:40:3F, it is SSANGYONG COMPUTER SYSTEMS hardware.
Frequently Asked Questions
Who owns MAC prefix 00403F?
00403F is registered to SSANGYONG COMPUTER SYSTEMS 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. SSANGYONG COMPUTER SYSTEMS's block covers 16,777,216 addresses.
What devices use 00403F?
Any network device with a MAC address starting 00:40:3F was manufactured by or for SSANGYONG COMPUTER SYSTEMS.