What this means
The IEEE assigned the MA-M block 7CBC846 to Société de Transport de Montréal. 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 7C:BC:84:6, it is Société de Transport de Montréal hardware.
Frequently Asked Questions
Who owns MAC prefix 7CBC846?
7CBC846 is registered to Société de Transport de Montréal 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. Société de Transport de Montréal's block covers 1,048,576 addresses.
What devices use 7CBC846?
Any network device with a MAC address starting 7C:BC:84:6 was manufactured by or for Société de Transport de Montréal.