Looks like NEC. But they didn't really give you enough info. My best guess is NEC1, device 1. And the last number is the function code in hex. You can use that to generate the pronto hex in IR Scrutinizer and see if it works. Otherwise, you need to ask what the "customer code" is or get their technical document with all the details. "Customer code" would be the actual device number in place of my guess of 1.