From the beginning (May/June 2017), on my Xfi account app- all my apple devices showed a name and the device, ie. "Kevin's iPhone". Then sometime in the beginning of Oct 2017, it then only showed "Apple-5458" instead of "Kevin's iPhone". There are 7 Apple devices in my home and its getting confusing... I just got off the phone with Xfinity Advanced Repair Department @ (855) 484-1453 and they are trying to figure it out. Btw, I never had to assign names or "nicknames" to "personalize" my Apple devices. Any help???
In anticipation of future enhancements to device identification, all default device names (devices not yet personalized in xFi) were changed to display the Manufacturer + Last 4 of MAC Address. This should make the identification of all devices a little bit easier, however we acknowledge this creates an extra step for customers that have personalized their Apple devices through the device settings (on device, under Settings -> General -> About -> Name). This device name can still be found in xFi under Device Details -> Host Name.