What this means
The IEEE assigned the MA-M block 9CE5491 to Lightmatter, Inc.. 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 9C:E5:49:1, it is Lightmatter, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 9CE5491?
9CE5491 is registered to Lightmatter, Inc. in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Lightmatter, Inc.'s block covers 1,048,576 addresses.
What devices use 9CE5491?
Any network device with a MAC address starting 9C:E5:49:1 was manufactured by or for Lightmatter, Inc..