What this means
The IEEE assigned the MA-L block 00D318 to SPG Controls. 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:D3:18, it is SPG Controls hardware.
Frequently Asked Questions
Who owns MAC prefix 00D318?
00D318 is registered to SPG Controls 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. SPG Controls's block covers 16,777,216 addresses.
What devices use 00D318?
Any network device with a MAC address starting 00:D3:18 was manufactured by or for SPG Controls.