Who owns MAC prefix 00D318?

00D318 is registered to SPG Controls in the IEEE MA-L registry.

What devices use 00D318?

Any network device with a MAC address starting 00:D3:18 was manufactured by or for SPG Controls.

MA-L · OUI prefix

SPG Controls

Any MAC address starting 00:D3:18 is registered to SPG Controls in GB.

OUI prefix	00D318
Vendor	SPG Controls
Registry	MA-L (24-bit, large block)
Country	GB
Example MAC	00:D3:18:00:00:00

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.

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