What this means
The IEEE assigned the MA-L block 003042 to DeTeWe-Deutsche Telephonwerke. 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 00:30:42, it is DeTeWe-Deutsche Telephonwerke hardware.
Frequently Asked Questions
Who owns MAC prefix 003042?
003042 is registered to DeTeWe-Deutsche Telephonwerke 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. DeTeWe-Deutsche Telephonwerke's block covers 16,777,216 addresses.
What devices use 003042?
Any network device with a MAC address starting 00:30:42 was manufactured by or for DeTeWe-Deutsche Telephonwerke.