What this means
The IEEE assigned the MA-L block 703C39 to SEAWING Kft. 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 70:3C:39, it is SEAWING Kft hardware.
Frequently Asked Questions
Who owns MAC prefix 703C39?
703C39 is registered to SEAWING Kft 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. SEAWING Kft's block covers 16,777,216 addresses.
What devices use 703C39?
Any network device with a MAC address starting 70:3C:39 was manufactured by or for SEAWING Kft.