ATT services down due to bombing in Nashville
Considering the FBI recently foiled a plot by a group who was planning to "take out" parts of the energy grid, it seems likely from my experience that this is another set of people executing a similar plan targeting telecoms. I imagine there is a high probability of more incidents like this happening between now and the inauguration, meant to target various infrastructure and "big government" components throughout the country. This attack screams anti-government militia with it's technique, and we will see in the following days online chats emerging with all the planning details that will likely include someone that had some degree of "insider information" about the ATT facility.