Verizon customers across the U.S. experienced a wireless network outage on Wednesday that is disrupting calls, texts, and mobile data.

When Wi-Fi is unavailable, an iPhone relies on carrier connectivity for core communication features. Many affected devices are showing “SOS” or “Emergency calls only,” which points to a carrier authentication failure rather than an iOS or hardware issue.
Reports began surfacing earlier Wednesday and spread quickly across multiple regions. Verizon acknowledged service disruptions and said restoration work was underway, but the company didn’t shared a timeline beyond “work through the night.”