What this means
The IEEE assigned the MA-L block B8DB3D to SIMCom Wireless Solutions 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 B8:DB:3D, it is SIMCom Wireless Solutions Limited hardware.
Frequently Asked Questions
Who owns MAC prefix B8DB3D?
B8DB3D is registered to SIMCom Wireless Solutions 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. SIMCom Wireless Solutions Limited's block covers 16,777,216 addresses.
What devices use B8DB3D?
Any network device with a MAC address starting B8:DB:3D was manufactured by or for SIMCom Wireless Solutions Limited.