A cellular outage early on Thursday hit thousands of AT&T users in the United States, disrupting calls and text messages as well as emergency services in major cities including San Francisco.
"Some of our customers are experiencing wireless service interruptions this morning," AT&T said in a statement to CNBC.
The AT&T outage has impacted people's ability to reach emergency services by dialing 911, a post on social media platform X from the San Francisco Fire Department said.
"We are aware of an issue impacting AT&T wireless customers from making and receiving any phone calls (including to 911)," the fire department said on the platform.
He did not provide information on what the issue could be with the other carrier and did not name the other carrier.
Persons:
UScellular, – CNBC's Steven Kopack
Organizations:
CNBC, San Francisco Fire Department, Verizon, Mobile
Locations:
United States, San Francisco