What this means
The IEEE assigned the MA-M block 78E9961 to COGITO TECH COMPANY LIMITED. 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:E9:96:1, it is COGITO TECH COMPANY LIMITED hardware.
Frequently Asked Questions
Who owns MAC prefix 78E9961?
78E9961 is registered to COGITO TECH COMPANY LIMITED 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. COGITO TECH COMPANY LIMITED's block covers 1,048,576 addresses.
What devices use 78E9961?
Any network device with a MAC address starting 78:E9:96:1 was manufactured by or for COGITO TECH COMPANY LIMITED.