What this means
The IEEE assigned the MA-L block 28AD3E to Shenzhen TONG BO WEI Technology CO.,LTD. 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 28:AD:3E, it is Shenzhen TONG BO WEI Technology CO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 28AD3E?
28AD3E is registered to Shenzhen TONG BO WEI Technology CO.,LTD 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. Shenzhen TONG BO WEI Technology CO.,LTD's block covers 16,777,216 addresses.
What devices use 28AD3E?
Any network device with a MAC address starting 28:AD:3E was manufactured by or for Shenzhen TONG BO WEI Technology CO.,LTD.