If you’re an AT&T customer, there’s a good chance you haven’t forgotten about the hours-long outage the company experienced last week.

On Thursday, thousands of AT&T users reported that they were unable to make calls or use their data. Outage tracker Downdetector noted that outages, which began at about 3:30 a.m. ET, peaked at around 73,000 reported incidents. AT&T had more than 58,000 outages around noon ET on Thursday, in locations including Houston, Atlanta and Chicago.

The carrier has more than 240 million subscribers, the country’s largest.

Read more at wpri.com.