Reports dipped before spiking again to more than 50,000 around 7 a.m., with most issues reported in Houston, Chicago, Dallas, Los Angeles and Atlanta.Cricket Wireless, which is owned by AT&T and uses its networks, is also experiencing outages.Agencies across the country urged for calm amid AT&T's outage, some acknowledging that customers were briefly unable to contact 911.
Maryland's Montgomery County Department of Police asked people to refrain from calling 911 to test their cellphones.The U.S. Cybersecurity and Infrastructure Security Agency said it is in touch with AT&T but did not say there is any indication of a cyberattack. "Some of our customers are experiencing wireless service interruptions this morning. Our network teams took immediate action and so far three-quarters of our network has been restored. We are working as quickly as possible to restore service to remaining customers," the company said in a statement.AT&T said it is working to resolve the issue and restore service, but did not shed light on what caused the outage.
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