What this means
The IEEE assigned the MA-L block 00AA3C to OLIVETTI TELECOM SPA (OLTECO). 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:AA:3C, it is OLIVETTI TELECOM SPA (OLTECO) hardware.
Frequently Asked Questions
Who owns MAC prefix 00AA3C?
00AA3C is registered to OLIVETTI TELECOM SPA (OLTECO) 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. OLIVETTI TELECOM SPA (OLTECO)'s block covers 16,777,216 addresses.
What devices use 00AA3C?
Any network device with a MAC address starting 00:AA:3C was manufactured by or for OLIVETTI TELECOM SPA (OLTECO).