Verizon said it has resolved an hours-long outage that is believed to have left tens of thousands of US customers without access to voice and data services for much of Wednesday.

Verizon has received all approvals it needs for a $9.6 billion acquisition of Frontier Communications, an Internet service provider with about 3.3 million broadband customers in 25 states. Verizon said it expects to complete the merger on January 20.

Verizon says it's working on a solution for the national service disruption many customers experienced on Jan. 14.

Tess Coward, a 27-year-old PR professional based in New York City, woke up feeling under the weather on Wednesday. But without the ability to make phone calls or receive text messages, she couldn’t get in touch with her doctor or log into the provider’s patient portal.

The outages appear to be happening nationwide, with the most reported locations including Seattle, San Francisco, Los Angeles, Phoenix, Dallas, Houston, Atlanta, Tampa, St. Louis, Chicago, Minneapolis, Detroit, Washington, D.C., and New York City.

Verizon Wireless is responding to a major disruption in service, with customers nationwide reporting that they're unable to make phone calls or use the int

Verizon's service is now recovering following a major outage which left many users reporting no service and seeing an SOS icon instead of bars. TechRadar is following this story and has reached out to Verizon for more information on what caused the problem.

Long wait on Verizon's Customer Service or chat? It's confusing, but here's how and when you'll get $20 bill credit for the massive Verizon outage.