Xfinity, Verizon, T-Mobile outages reported in San Francisco, other cities

There were more than 54,000 reports submitted to service outage website just before 9 a.m. EST Tuesday

Comcast customers reported Xfinity outages in major cities across the U.S. on Tuesday morning.

There were more than 54,000 reports submitted to service outage website just before 9 a.m. EST on Tuesday, the majority (64%) of which were "total blackout" reports, meaning nothing was working for those experiencing issues.

"Earlier, some customers experienced intermittent service disruptions as a result of a network issue," a Comcast spokesperson told FOX Business. "We have addressed the issue and service is now restoring for impacted customers, as we continue to investigate the root cause. We apologize to those who were affected."

By 10 a.m. EST, there were only several thousand service disruption reports, according to the website.

Customers mainly reported service issues from San Francisco, though there appeared to be some outages in Los Angeles, Pittsburgh, Chicago and parts of New Jersey and Massachusetts, a map on DownDetector shows.

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Internet disruption tracker NetBlocks also reported Xfinity outages "in multiple states" Tuesday morning.

The WiFi provider's support Twitter account said in a Tuesday post that customers can check the status of service interruptions in certain areas through its "online service status tool."

Verizon and T-Mobile customers also reported service issues on DownDetector, but Verizon Director of Corporate Communications Kevin King said the wireless network provider "did not have any network outages" Tuesday morning.

"I have seen reports of other service providers experiencing service disruptions but Verizon's network was not impacted," he said.

A T-Mobile spokesperson said "there were two separate third party transport issues that had very short-term impacts on service for customers: one impacted parts of LA and San Francisco late last night, and the other impacted areas of Chicago, New England and Philadelphia earlier this morning."

"Each issue was quickly resolved. We thank customers for their patience," the spokesperson said.