(NEXSTAR) — If you’re an AT&T customer, there’s a good chance you haven’t forgotten about the multi-hour outage the company experienced last week.
On Thursday, thousands of AT&T users reported being unable to make calls or use data. His Downdetector, a trouble tracking service, noted that the outage, which began around 3:30 a.m. ET, peaked at about 73,000 reported incidents. AT&T reported more than 58,000 outages around noon ET Thursday in areas including Houston, Atlanta and Chicago.
The company has over 240 million subscribers, making it the largest in Japan.
Some iPhone users have seen an SOS message appear on their phone’s status bar. According to Apple Support, this message indicates that your device can’t connect to your mobile provider’s network, but you can still make emergency calls through other carriers’ networks.
By Thursday evening, AT&T announced it had restored wireless service to all affected customers.
Late Sunday evening, the company announced it would issue refunds to affected businesses.
“We apologize for the network outage on Thursday. We recognize the frustration this outage caused and know we have disappointed many customers.” AT&T written on the website. “To resolve the issue, we are contacting potentially affected customers and automatically applying credits to their accounts. We want our customers to feel confident in our commitment. We’re passing on to them the average cost of a full day’s service.”
A note on the company’s website says a $5 credit will be refunded per account to AT&T Wireless accounts. This offer does not apply to AT&T Business, AT&T Prepaid, or Cricket. Users of AT&T’s Cricket also experienced an outage on Thursday.
AT&T announced Thursday that based on an initial investigation, the outage was not caused by a cyberattack, The Hill previously reported. Rather, the company said it believes the failure was “caused by the incorrect application and execution of processes used in expanding the network.”
The Federal Communications Commission (FCC), Department of Homeland Security (DHS) and FBI confirmed Thursday that they are investigating the outage. It is unclear whether this is still the case.
AT&T said in a statement Saturday that it is “taking steps to prevent this from happening again in the future.”
“Our priority is to continually improve and ensure we remain connected to our customers.”
The Associated Press contributed to this report.
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