Time Warner says cable and internet services are mostly up and running again after nationwide outages were reported early Wednesday morning.

In a statement, Time Warner said that routine network maintenance caused the massive disruption to internet and On Demand service, starting at around 4:30 a.m. ET.

There was an "issue with our Internet backbone," the statement said.

According to data from DownDetector.com, a spike in customers reporting outages seemed to come flooding in around 5 a.m. ET (labeled as 10:00 on the chart).

"As of 6 a.m. ET services were largely restored," Time Warner said.

Earlier, outage reports streamed in from both the East and West Coasts with a majority of issues originating in large cities like Los Angeles, Chicago, Houston, and Tampa, according to DownDetector.com.

The site also posted an outage map showing the affected areas.

During the outage, TWC

We're%20working%20to%20restore%20services%20to%20all%20areas%20as%20quickly%20as%20possible;%20no%20ETR.%20Tweets%20will%20be%20delayed%20while%20this%20is%20addressed.

Luckily, the widespread service happened while most people in the U.S. were sleeping, so only early birds seemed to notice the outage and were sprightly enough to tweet about it.