AT&T U-verse users have been facing service issues this week as outages affected several areas across the nation.

The company provides phone, TV, and Internet service to numerous users in the U.S. The outage affected hundreds of users throughout several Southern states, including Louisiana, Kentucky, Texas, Georgia, Tennessee, Florida, and Arkansas.

The outage started on Monday, Jan. 21, and AT&T acknowledged the issue the next day. Hundreds of users have complained of no service on the company's online forum, under the thread "U-verse outage - What's going on?"

"I have been without TV, Phone, Internet for almost 5 hours now," one user complained on Monday, shortly after the outage started, unaware that it was about to last for days. "I'm using my cell phone to post this."

AT&T acknowledged the issue on Tuesday, Jan. 22, via Twitter. The company pointed to a U-verse server problem, but said customers should be able to regain access to the service simply by restarting their system.

On Wednesday, Jan. 23, the issue still persisted. AT&T U-verse again tweeted that users are still experiencing issues with the service.

"The issue impacting some U-verse subscribers has been tracked back to a software upgrade," the company also wrote on its Facebook page on Wednesday. "We continue to work to determine when service will be completely restored. Our continued apologies for the inconvenience."

DSLReports was the first to report on the AT&T U-verse outages, as AT&T customers flocked to its forums to complain about the issue. AT&T spokesman Mark Siegel said on Wednesday that customers in some markets are still having issues with their service, but the company is working hard to fix things.

"This issue currently affects less than 1 percent of our U-verse subscribers, but that is too many and we are working hard to fix this," said the spokesman. "We are making progress in resolving the issue which is related to servers supporting U-verse, and are working to determine when service will be completely restored. We apologize for this inconvenience."

The company's Facebook message sparked off more than 400 comments and more than 70 shares, as customers continued to complain about the outage to no avail. When AT&T did respond, it simply reinstated its earlier message that it was aware of the issue and it is working to fix it. The company managed to resolve the issue for many users, but some customers are still posting on the AT&T forum that they are facing outages.