What this means
The IEEE assigned the MA-M block 787264C to Comcast-SRL. 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 78:72:64:C, it is Comcast-SRL hardware.
Frequently Asked Questions
Who owns MAC prefix 787264C?
787264C is registered to Comcast-SRL 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. Comcast-SRL's block covers 1,048,576 addresses.
What devices use 787264C?
Any network device with a MAC address starting 78:72:64:C was manufactured by or for Comcast-SRL.