What this means
The IEEE assigned the MA-L block 1C3B01 to Shanghai Xiaodu Technology 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 1C:3B:01, it is Shanghai Xiaodu Technology Limited hardware.
Frequently Asked Questions
Who owns MAC prefix 1C3B01?
1C3B01 is registered to Shanghai Xiaodu Technology 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. Shanghai Xiaodu Technology Limited's block covers 16,777,216 addresses.
What devices use 1C3B01?
Any network device with a MAC address starting 1C:3B:01 was manufactured by or for Shanghai Xiaodu Technology Limited.