What this means
The IEEE assigned the MA-L block 00153F to Alcatel Alenia Space Italia. 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 00:15:3F, it is Alcatel Alenia Space Italia hardware.
Frequently Asked Questions
Who owns MAC prefix 00153F?
00153F is registered to Alcatel Alenia Space Italia 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. Alcatel Alenia Space Italia's block covers 16,777,216 addresses.
What devices use 00153F?
Any network device with a MAC address starting 00:15:3F was manufactured by or for Alcatel Alenia Space Italia.