(WRIC) -- AT&T customers in parts of the country are reporting an outage that's left them without service or their iPhone devices stuck in SOS mode.
Reports of an outage peaked just before 6 p.m. CST on Downdetector, with more than 5,700 users complaining of a service disruption. By 8:35 p.m., the reports fell to just over 3,400.
According to USA Today, a company spokesperson said AT&T is working to fix a "software issue that may be disrupting the ability of some of our customers to connect to our wireless network."
The spokesperson told the outlet that the outage seems to be affecting customers in the Midwest and on the East Coast, but Downdetector shows reports coming in from California too.
Meanwhile, in some states, the outage is reportedly affecting calls to 911.
City officials in North Little Rock, Arkansas, said they were notified by AT&T that the outage could prevent customers from reaching emergency dispatchers.
“We are engaged and working to fully isolate and resolve the issue. The specific cause of the service outage has not yet been determined," AT&T said in a statement to the city.
Officials in Hanover County, Virginia, received a similar notice from the company.
Downdetector also shows reports of 911 outages in Florida and Michigan, though it's unclear whether those are tied to the AT&T service disruption.
No other information is available at this time.
KARK's Ryan Turbeville contributed to this report.
