What this means
The IEEE assigned the MA-L block 48F47D to TechVision Holding Internation Limited. 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 48:F4:7D, it is TechVision Holding Internation Limited hardware.
Frequently Asked Questions
Who owns MAC prefix 48F47D?
48F47D is registered to TechVision Holding Internation Limited 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. TechVision Holding Internation Limited's block covers 16,777,216 addresses.
What devices use 48F47D?
Any network device with a MAC address starting 48:F4:7D was manufactured by or for TechVision Holding Internation Limited.