What this means
The IEEE assigned the MA-L block 20DE88 to IC Realtime LLC. 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 20:DE:88, it is IC Realtime LLC hardware.
Frequently Asked Questions
Who owns MAC prefix 20DE88?
20DE88 is registered to IC Realtime LLC in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. IC Realtime LLC's block covers 16,777,216 addresses.
What devices use 20DE88?
Any network device with a MAC address starting 20:DE:88 was manufactured by or for IC Realtime LLC.