WICHITA, Kan. (KAKE) - Some people probably ditched their morning cup of coffee to be first in line at the AT&T store.  

A nationwide outage had more than 50,000 customers on edge Thursday morning wondering when service would be restored.  

"I thought, I know I paid the bill everything looks good. I restarted the phone, still not working right so I walked over here to ask if there was a problem and indeed they told me that the network is down nationwide," said AT&T customer Hugo Rodriguez.  

The outage was reported around 4 a.m. central time to the site Downdetector which tracks self-reported outages.  

Thursday morning the FBI and Department of Homeland Security (DHS) were investigating if the outages were the result of a cyber attack, hack, or a breakdown in communication. 

AT&T customer Peggy Ingram said she and another gentleman had SOS on their phones but while in line both phone’s service was restored.  

"I walked in and said I'm having the same problem and then he said he looked at his and the SOS went away so he tried face timing his granddaughter and it worked so we were all excited," said Ingram. 

According to Downdetector, the highest number of AT&T outages were reported across the Midwest, Texas and Southeast. 

In a statement from an AT&T Spokesperson, service was restored to everyone this afternoon.  

The cause of the outage is still unknown.