What this means
The IEEE assigned the MA-L block 00178B to Teledyne Technologies Incorporated. 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 00:17:8B, it is Teledyne Technologies Incorporated hardware.
Frequently Asked Questions
Who owns MAC prefix 00178B?
00178B is registered to Teledyne Technologies Incorporated 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. Teledyne Technologies Incorporated's block covers 16,777,216 addresses.
What devices use 00178B?
Any network device with a MAC address starting 00:17:8B was manufactured by or for Teledyne Technologies Incorporated.