Flights resumed at Nashville International Airport about an hour later, but connectivity issues continued Friday evening in Tennessee and other parts of the region. Some sources said there were problems with the 911 system.
AT&T has confirmed that one of its network hubs was damaged in the Christmas bombing.
“We continue to work to restore service to customers in and around Nashville affected by the explosion this morning,” AT&T spokesman Jim Greer said of the fall in Nashville last night.
“We have mobilized additional resources, including our National Disaster Rescue Team, and are bringing in many smaller cell sites to assist in rescue efforts,” Greer added.
Earlier in the day, AT&T confirmed that it was “in contact with law enforcement and working as quickly and safely as possible to restore service”.
If a network hub is disrupted, usually by a hurricane or other natural disaster, some internet traffic may be disrupted, but not all.
That’s why customers in Nashville and other parts of Tennessee reported losing wireless phone service and other connections.
Network centers rely on business power with battery and generator backups. Damage to the facility may have affected these systems and service may have deteriorated late Friday.
AT&T sends small cell towers to Nashville to enforce the law and improve wireless service. Warner Media owns CNN’s parent company, AT&T.
The disruption at the Downtown Network Center caused layered effects at the airport and elsewhere.
Nashville International Airport has reported that telecommunications problems related to the bombing caused the Federal Aviation Administration to shorten flights from Nashville.
The FAA said the ground stop was removed about an hour later. “Pilots have never lost contact with air traffic control,” the company said in a statement.
The FAA website shows that grounding was granted due to a ZME frequency failure.
ZME is an FAA air traffic control facility in Memphis, which is responsible for controlling flights at high altitudes in the area.
At 3:30 pm, a tweet from the airport said that the airline at Nashville International Airport was “constantly suffering from telecommunications problems.”
The airport said in a tweet on Friday evening that “most flights will resume, but there may be some delays”.
CNN’s Pete Mundian contributed to the report.