What this means
The IEEE assigned the MA-L block 64D1A3 to Sitecom Europe BV. 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 64:D1:A3, it is Sitecom Europe BV hardware.
Frequently Asked Questions
Who owns MAC prefix 64D1A3?
64D1A3 is registered to Sitecom Europe BV 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. Sitecom Europe BV's block covers 16,777,216 addresses.
What devices use 64D1A3?
Any network device with a MAC address starting 64:D1:A3 was manufactured by or for Sitecom Europe BV.