What this means
The IEEE assigned the MA-L block 000DD0 to TetraTec Instruments GmbH. 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 00:0D:D0, it is TetraTec Instruments GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 000DD0?
000DD0 is registered to TetraTec Instruments GmbH 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. TetraTec Instruments GmbH's block covers 16,777,216 addresses.
What devices use 000DD0?
Any network device with a MAC address starting 00:0D:D0 was manufactured by or for TetraTec Instruments GmbH.