Can't find my GMX9865 on Cox' Identifying Your Cox Digital Receiver webpage

Unless it's listed under a different manufacturer/model number on this Cox page (https://www.cox.com/content/cox/residential/corporate/locations/greaterlouisiana/pages/support/identifying-your-cox-digital-receiver.html), the main DVR device we currently have installed (according to https://www.cox.com/resaccount/my-services.cox ) , a GMX9865, either fell between the cracks or is so new that Cox hasn't had the time to list it.

While it continues to function as per designed and installed (with the exception of having on occasion to repeat a command on the remote - line of sight?), I'm curious as to why it's not to be found on the above Cox Receiver reference page.