Verizon says it's fully restored its service after a major outage on Monday, but has a tip for anyone still experiencing issues.

On Monday, Verizon suffered a massive outage that affected customers across the country. While it’s not clear exactly how many customers were without service, Verizon has more than 114 million customers in the U.S.

Carrier Verizon claims to have restored service across the country, but iPhone and Android users are still waiting to be told what happened — and how it can be prevented from happening again.