What this means
The IEEE assigned the MA-L block E40D3B to Ericsson AB. 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 E4:0D:3B, it is Ericsson AB hardware.
Frequently Asked Questions
Who owns MAC prefix E40D3B?
E40D3B is registered to Ericsson AB 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. Ericsson AB's block covers 16,777,216 addresses.
What devices use E40D3B?
Any network device with a MAC address starting E4:0D:3B was manufactured by or for Ericsson AB.