Some AT&T customers were left in the dark on Tuesday after the telecommunications company suffered an outage that prevented calls from being made between carriers.
The outage caused thousands of Verizon customers to report issues as well, according to a statement from AT&T.
“The interoperability issue between carriers has been resolved,” an AT&T spokesperson said. “We collaborated with the other carrier to find a solution and appreciate our customers patience during this period.”
According to AT&T, the outage left some customers in New York City, Chicago, Philadelphia, Dallas, Pittsburgh and Indianapolis without the ability to make calls. 911 calls were still able to go through in some areas, but the prompts sent out by AT&T regarding the outage caused some customers to report that they were unable to make calls to 911.
This is the latest in a series of AT&T outages. In February, the company suffered a massive disruption that left tens of thousands of customers without phone calls, texts, emergency services or internet access. The company said that an attack caused by hackers stole the Social Security numbers of thousands of AT&T customers.
