Verizon users on Monday woke up to a nationwide outage that the telecom giant said is currently being dealt with.

Telecom giant Verizon started the week with a sweeping outage as hundreds of thousands of users reported issues ranging from impacted mobile phones to total service blackouts.

Reports of issues started to flood in on Monday morning, with more than 100,000 user reports indicating connectivity issues for mobile phones across the country by 10 a.m. ET, according to outage-tracking website Downdetector.

“We are aware of an issue impacting service for some customers. Our engineers are engaged and we are working quickly to identify and solve the issue,” a Verizon spokesperson told CRN in an email.

[Related: AT&T Says It’s ‘Working Urgently’ To Restore Downed Service]

The Basking Ridge, N.J.-based carrier did not comment on whether its nationwide business services have been impacted by the outage.

Users from New York to Los Angeles reported no service or limited service, with the exception of SOS mode, which allows users to place emergency calls by falling back on other carrier networks in range.

As of 1 p.m. ET, the number of effected users has declined to about 58,000 users across the country.

Verizon’s outage on Monday is just one of a number of widescale outages that have happened so far in 2024. Dallas-based Verizon rival AT&T in February had its wireless service break down across several major U.S. cities for more than 70,000 users. In July, Amazon Web Services dealt with its own significant outage that impacted Amazon-owned Whole Foods supermarkets, Amazon delivery services and Alexa devices. Perhaps most noteworthy and in the same month, cybersecurity specialist CrowdStrike’s software caused a worldwide Microsoft technology outage that had sweeping implications across a variety of industries, including airlines and healthcare services.