"We continue to make good progress with our recovery efforts and we are working tirelessly until restoration is complete", CenturyLink said.
Capas said there had not been any reports of issues as of Friday morning. I have also spoken with CenturyLink to underscore the urgency of restoring service immediately.More news: Tips to Help Businesses Beat the Flu Season
CenturyLink says customers are experiencing disruptions in phone and internet service in several states, including Minnesota.
Federal Communications Commission Chairman Ajit Pai called the outage "completely unacceptable" in a statement. However, this technical issue was different from others because CenturyLink is one of the main providers of internet and telephony connections to numerous US' 911 emergency call centers.More news: Dale Steyn becomes South Africa's leading Test wicket-taker
Wireless callers with an emergency should try dialing 911 first, officials said.
The sheriff's office also said it appeared that Bisbee and Benson's 911 systems were down as well.More news: LeBron day-to-day with groin strain
The outage began early Thursday but by late that night, the company tweeted that its engineers had identified a "network element" that was affecting services and expected to fully restore services within hours. He said he spoke to CenturyLink about his concerns and has ordered an investigation. Denver, Seattle, Boise, Dallas, Los Angeles, Chicago, and Phoenix were some of the cities to have confirmed issues with internet, television, phone, and home security services, Scripps station KIVI reported.