What this means
The IEEE assigned the MA-L block 00122E to Signal Technology - AISD. 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 00:12:2E, it is Signal Technology - AISD hardware.
Frequently Asked Questions
Who owns MAC prefix 00122E?
00122E is registered to Signal Technology - AISD 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. Signal Technology - AISD's block covers 16,777,216 addresses.
What devices use 00122E?
Any network device with a MAC address starting 00:12:2E was manufactured by or for Signal Technology - AISD.